# Subtraction of Capacity | Litres and Millilitres Subtraction | How to Subtract Capacities of Different Units?

Capacity is the ability to hold the largest amount. The standard unit of capacity is liters. It can also be measured in milliliters, centiliters, Deca liters, etc. We can Subtract the capacity of one or more just like subtracting the numbers. The concept of borrowing is similar to the subtraction process. It would be easy if we know the relation between units of capacity. You can also check the solved examples of subtraction of capacity for a better understanding of the concept.

### How to Subtract Units of Capacity from One Another?

In the Subtraction of capacity, we will explain how to subtract the different units of capacity and volume together. In the Subtraction process, we have to follow that the units of capacity (i.e., liter and milliliter) are converted into smaller units (milliliters) before subtraction and then follow the simple subtraction process.

We have two different methods to solve subtraction using the standard unit and smaller unit of capacity. Both the methods can be practiced by everyone.

(i) Subtracting units with conversion into milliliters

(ii) Subtracting units without conversion into milliliters

We can subtract two or more units of capacity l and ml just like ordinary numbers.

### Subtracting Litres and Millilitres Examples

Consider some examples of the subtraction of capacity and follow the same procedure for similar problems.

Example 1:

Subtract 4 l 530 ml from 18 l 850 ml using both methods.

Solution:

Method 1 (with conversion into milliliter):

We know, 1 liter = 1000 milliliters

Now convert liter and milliliter into milliliters before doing subtraction and then we have to follow the simple subtraction process.

4 l 530 ml = (4 × 1000) ml + 530 ml = 4000 ml + 530 ml = 4530 milliliters

18 l 850 ml = (18 × 1000) ml + 850 ml = 18000 ml + 850 ml = 18850 milliliters

Now the difference is,

1  8  8  5  0 ml

4  5  3  0 ml
1  4  3  2   0 ml

= 14 l 320 ml

Therefore, 18l 850 ml – 4 l 530 ml = 14 l 320 ml

Method 2 (without conversion into milliliter):

Now arrange liter and milliliter in different columns and then subtract like ordinary numbers.

(i) Liter and milliliter are arranged in columns

(ii) 850 ml – 530 ml = 320 ml

(iii) 18 l – 4 l = 14 l

l       ml
1  8     8   5  0

–      4     5  3    0
1    4     3    2     0

= 14 l 320 ml

Therefore, the difference of 18 l 850 ml from 4 l 530 ml = 14l 320 ml

Example 2:

Subtract 2 l 250 ml from 15 l 780 ml using both methods.

Solution:

Method 1 (with conversion into milliliter):

We know, 1 liter = 1000 milliliters

Now convert liter and milliliter into milliliters before doing subtraction and then we have to follow the simple subtraction process.

2l 250 ml = (2 × 1000) ml + 250 ml = 4000 ml + 250 ml = 4250 milliliters

15 l 780 ml = (15 × 1000) ml + 780 ml = 15000 ml + 780 ml = 15780 milliliters

Now the difference is,

1  5  7  8  0 ml

2  2  5  0 ml
1  3  5  3   0 ml

= 13 l 530 ml

Therefore, 15l 780 ml – 2 l 250 ml = 13 l 530 ml

Method 2 (without conversion into milliliter):

Now arrange liter and milliliter in different columns and then subtract like ordinary numbers.

(i) Liter and milliliter are arranged in columns

(ii) 780 ml – 250 ml = 320 ml

(iii) 15 l – 2 l = 13 l

l       ml
1  5     7   8   0

–      2     2    5   0
1  3   5    3   0

= 13 l 530 ml

Therefore, the difference of 15 l 780 ml from 2 l 250 ml = 13l 530 ml

Example 3:

Subtract 6 l 180 ml from 39 l 490 ml using both methods.

Solution:

Method 1 (with conversion into milliliter):

We know, 1 liter = 1000 milliliters

Now convert liter and milliliter into milliliters before doing subtraction and then we have to follow the simple subtraction process.

6l 180 ml = (6 × 1000) ml + 180 ml = 6000 ml + 180 ml = 6180 milliliters

39l 490 ml = (39 × 1000) ml + 410 ml = 39000 ml + 410 ml = 39490 milliliters

Now the difference is,

3  9  4  9  0 ml

6  1  8  0 ml
3  3    3  1   0 ml

= 33 l 310 ml

Therefore, 39l 490 ml – 6 l 180 ml = 33 l 310 ml

Method 2 (without conversion into milliliter):

Now arrange liter and milliliter in different columns and then subtract like ordinary numbers.

(i) Liter and milliliter are arranged in columns

(ii) 490 ml – 180 ml = 310 ml

(iii) 39 l – 6 l = 33 l

l       ml
3  9     4    9     0

–      6     1     8    0
3  3     3    1     0

= 33 l 310 ml

Therefore, the difference of 39 l 490 ml from 6 l 180 ml = 33l 310 ml

Example 4:

Subtract 3 l 570 ml from 14 l 680 ml with conversion into milliliter.

Solution:

With conversion into milliliter, we will do simple subtraction.

We know, 1 liter = 1000 milliliters

Now convert liter and milliliter into milliliters before doing subtraction and then we have to follow the simple subtraction process.

3 l 570 ml = (3× 1000) ml + 570 ml = 3000 ml + 570 ml = 3570 milliliters

14 l 680 ml = (14 × 1000) ml + 680 ml = 14000 ml + 680 ml = 14680 milliliters

Now difference is,

1   4   6   8   0  ml

3    5   7    0  ml
1   1  1    1      0  ml

= 11 l 110 ml

Therefore, 14 l 680 ml – 3 l 570 ml = 11 l 110 ml.

Example 5:

Subtract 19 l 750 ml from 29 l 950 ml using the conversion into millimeter method.

Solution:

Method 1 (with conversion into milliliter):

We know, 1 liter = 1000 milliliters

Now convert liter and milliliter into milliliters before doing subtraction and then we have to follow the simple subtraction process.

19l 750 ml = (19 × 1000) ml + 750 ml = 19000 ml + 750 ml = 19750 milliliters

29l 950 ml = (29 × 1000) ml + 950 ml = 29000 ml + 950 ml = 29950 milliliters

Now the difference is,

2  9  9  5  0 ml

1  9  7  5  0 ml
1   0   2  0   0 ml

= 10 l 200 ml

Therefore, 29l 950 ml – 19 l 750 ml = 10 l 200 ml.

Example 6:

Subtract 1 l 330 ml from 9 l 950 ml .

Solution:

Now arrange liter and milliliter in different columns and then subtract like ordinary numbers.

(i) Liter and milliliter are arranged in columns

(ii) 950 ml – 330 ml = 620 ml

(iii) 9 l – 1 l = 8 l

l       ml
9     9     5     0

–      1     3    3    0
8   6     2     0

= 8 l 620 ml

Therefore, the difference of 9 l 950 ml from 1 l 330 ml = 8 l 620 ml

Example 7:

Subtract  250 l 540 ml from 390 l 450 ml without converting to ml.

Solution:

Now arrange liter and milliliter in different columns and then subtract like ordinary numbers.

Liters and milliliter are arranged in columns

Since, 540 ml > 450 ml, we cannot subtract. We borrow 1 l  from 390 and it becomes 380l and subtracts 540 from 1450.

1450 – 540 = 910 ml, write 910 under ml column.

Subtract liters.

380 – 250 = 130 l

Write 130 under liters column.

l             ml

3   9   0     4     5     0

-2  5  0     5     4    0
1   3  0    9     1   0

= 130 l 910 ml

Therefore, the difference of 390 l 450 ml from 250 l 540 ml = 130 l 910 ml.

Example 8:

Subtract 73 l 560 ml from 52 l 260 ml with conversion into milliliter.

Solution:

With conversion into milliliter, we will do simple subtraction.

We know, 1 liter = 1000 milliliters

Now liter and milliliter are converted into milliliters before doing subtraction and then we need to follow the simple subtraction process.

73 l 560 ml = (73× 1000) ml + 560 ml = 73000 ml + 560 ml = 73560 milliliters

52l 260 ml = (52 × 1000) ml + 260 ml = 52000 ml + 260 ml = 52260 milliliters

Now difference is,

7   3     5    6    0  ml

-5    2     2    6    0  ml
2    1      3     0      0 ml

= 21 l 300 ml

Therefore, 73 l 560 ml – 52 l 260 ml = 21 l 300 ml.

Example 9:

Subtract 11 l 570 ml from 44 l 790 ml with conversion into milliliter.

Solution:

With conversion into milliliter, we will do simple subtraction.

We know, 1 liter = 1000 milliliters

Now liter and milliliter are converted into milliliters before doing subtraction and then we need to follow the simple subtraction process.

44l 790 ml = (44× 1000) ml + 790 ml = 44000 ml + 790 ml = 44790 milliliters

11l 570 ml = (11 × 1000) ml + 570 ml = 11000 ml + 570 ml = 11570 milliliters

Now difference is,

4   4     7    9    0  ml

-1    1     5    7   0  ml
3    3      2     2      0 ml

= 33 l 220 ml

Therefore, 44 l 790 ml – 11 l 570 ml = 33 l 220 ml.