In subtraction of capacity we will learn how to find the difference between the units of capacity and volume. While subtracting we need to follow that the units of capacity i.e., liter and milliliter are converted into milliliters before subtraction and then follow the simple subtraction process.
We will learn two different methods to solve subtraction using the standard unit and smaller unit of capacity. Students can practice both the methods.
(i) Subtracting units with conversion into milliliter
(ii) Subtracting units without conversion into milliliter
Workedout examples on subtraction of capacity:
1. Subtract 6 l 250 ml from 15 l 500 ml
Solution:
Method 1 (with conversion into milliliter):
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.
6 l 250 ml = (6 × 1000) ml + 250 ml = 6000 ml + 250 ml = 6250 milliliters
15 l 500 ml = (15 × 1000) ml + 500 ml = 15000 ml + 500 ml = 15500 milliliters
Now difference is,
15500 ml
 6250 ml
9250 ml
= 9 l 250 ml
Therefore, 15 l 500 ml  6 l 250 ml = 9 l 250 ml
Method 2 (without conversion into milliliter):
Here liter and milliliter are arranged in different columns and then subtract like ordinary numbers.
Follow the steps:
(i) Liter and milliliter are arranged in columns
(ii) 500 ml  250 ml = 250 ml
(iii) 15 l  6 l = 9 l
l ml
15 500
 6 250
9 250
= 9 l 250 ml
Therefore, difference of 6 l 250 ml from 15 l 500 ml = 9 l 250 ml
2. Subtract 6 l 650 ml from 18 l 875 ml
Solution:
Method 1 (with conversion into milliliter):
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.
6 l 650 ml = (6 × 1000) ml + 650 ml = 6000 ml + 650 ml = 6650 milliliters
18 l 875 ml = (18 × 1000) ml + 875 ml = 18000 ml + 875 ml = 18875 milliliters
Now difference is,
18875 ml= 12 l 225 ml
Therefore, 18 l 875 ml  6 l 650 ml = 12 l 225 ml
Method 2 (without conversion into milliliter):
Here liter and milliliter are arranged in different columns and then subtract like ordinary numbers.
Follow the steps:
(i) Liter and milliliter are arranged in columns
(ii) 875 ml  650 ml = 225 ml
(iii) 18 l  6 l = 12 l
l ml= 12 l 225 ml
Therefore, difference of 6 l 650 ml from 18 l 875 ml = 12 l 225 ml
More solved examples on subtraction of capacity where the method is mentioned in the given question.
3. Subtract 7 l 850 ml from 19 l 375 ml without conversion into milliliter.
Solution:
Without conversion into milliliter here liter and milliliter are arranged in different columns and then subtract like ordinary numbers.
Follow the steps:
(i) Liter and milliliter are arranged in columns
(ii) 850 ml  375 ml, so 1 l from 19 l is borrowed and added to 375 ml
1 l + 375 ml = 1375 ml
1375 ml  850 ml = 525 ml
(iii) 19 l reduce into 18 l
18 l  7 l = 11 l
l ml= 11 l 525 ml
Therefore, difference of 7 l 850 ml from 19 l 375 ml = 11 l 525 ml
4. Subtract 4 l 250 ml from 13 l 750 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.
4 l 250 ml = (4 × 1000) ml + 250 ml = 4000 ml + 250 ml = 4250 milliliters
13 l 750 ml = (13 × 1000) ml + 750 ml = 13000 ml + 750 ml = 13750 milliliters
Now difference is,
13750 ml
 4250 ml
9500 ml
= 9 l 500 ml
Therefore, 13 l 750 ml  4 l 250 ml = 9 l 500 ml
Word problems on subtraction of capacity and volume:
5. Olivia purchased 7 l 500 ml of milk. She consumed 3 l 700 ml of milk during the day. How much milk was left?
Solution:
Quantity of milk purchased = 7 l 500 ml
Quantity of milk consumed = 3 l 700 ml
Therefore, quantity of milk left = 3 l 800 ml
The above problems on subtraction of capacity and volume will help the students to practice the worksheet on subtracting the different units with conversion or without conversion.
● Related Concepts
● Conversion of Standard Unit of Capacity
From Subtraction of Capacity to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.

New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.