Sharing and Measuring
Fraction of a group
Colour a fraction of a group of diyas with Meena.
In your book, Maths Mela (Chapter 5), Meena has 8 diyas and wants to colour 1/4 of them red. How many is that? To find 1/4 of the diyas, divide them into 4 equal groups. 8 diyas in 4 equal groups gives 2 diyas in each group. One group is 1/4, so Meena colours 2 diyas red.
We can find a fraction of any group of things this way: split the group into as many equal parts as the bottom number says, then count one part. There are 12 cookies. Shared equally among 3 children, each child gets 1/3 of the cookies. 12 cookies in 3 equal groups is 4 in each group, so 1/3 of 12 is 4 cookies.
With the same 12 cookies: among 6 children, each gets 1/6, which is 2 cookies. Among 2 children, each gets 1/2, which is 6 cookies. Among 4 children, each gets 1/4, which is 3 cookies.
Simran invites her 9 school friends, and 1/3 of them get a hairband. 9 friends in 3 equal groups is 3 in each group, so 3 friends get a hairband. Kadamba's box has 16 barfis to divide into 4 equal parts: 16 in 4 equal groups is 4, so 1/4 of 16 barfis is 4 barfis.
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