NCERT Solutions for Class 4th Maths Chapter 5 Finding fractions of a group — Let Us Do

Book page 74 Updated on2026-09-19

Q1.
There are 12 cookies. What fraction of cookies will each get if the number of children are as follows: a) 3 children b) 6 children c) 2 children d) 4 children
Answer

Share the 12 cookies into equal groups, one group for each child.

The 12 cookies.
ChildrenCookies for each childFraction of all the cookies
a) 3 children12 = 4 + 4 + 4, so 4 cookies1/3
b) 6 children12 = 2 + 2 + 2 + 2 + 2 + 2, so 2 cookies1/6
c) 2 children12 = 6 + 6, so 6 cookies1/2
d) 4 children12 = 3 + 3 + 3 + 3, so 3 cookies1/4
For 3 children: circle 4 cookies for one child. That circled part is 1/3 of all the cookies.
Why it happens: Each child gets one of the equal groups. If there are 3 groups, one group is 1/3 of the whole lot; if there are 6 groups, one group is 1/6.
Check it yourself: More children, fewer cookies each — just like the dhokla story.
Q2.
Simran calls her school friends for her birthday party. 1/3 of her friends receive a hairband as their return gift. Place hairbands on 1/3 of her friends.
Answer

Simran has 9 friends. 1/3 of 9 is 3 friends, so draw hairbands on 3 of them.

Simran’s 9 friends.
Count the friends = 9
Share them into 3 equal groups: 9 = 3 + 3 + 3
Each group has 3 friends
1/3 of 9 = 3 friends
Hairbands drawn on 3 of the 9 friends.
Why it happens: One-third means one group out of three equal groups, so we take just one of the groups of 3.
Q3.
Draw flowers in 1/5 of the given number of pots.
Answer

There are 15 pots. 1/5 of 15 is 3 pots, so draw flowers in 3 pots.

The 15 pots given in the book.
Count the pots = 15
Share them into 5 equal groups: 15 = 3 + 3 + 3 + 3 + 3
Each group has 3 pots
1/5 of 15 = 3 pots
Flowers drawn in 3 of the 15 pots.
Why it happens: One-fifth means one group out of five equal groups. Skip-counting in 3s five times gives 15, so each group is 3 pots.
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