Fractions

Last week I did a maths activity on Fractions.

This is what I did.

A) At a fancy dress party.  1/4 of 80 had costumes on.

Show how you worked out how many people had costumes on at the party :

Working out :

4 x 20 = 80

80 ÷ 4 = 20

Answer : There were 20 people in costumes at the fancy dress party.

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B) 2/3 of the class of 24 students owned cell phones.

Show how to work out how many students owned cell phones.

Working out :

3 x 8 = 24

24 ÷ 3 = 8

1/3 of 24 = 8 and 8 doubled is 16 so 2/3 of 24 is 16.

Answer :  16 students on cell phones.

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C) There are 180 students. 6/10 of them walk to school.

Show how to work out how many students walk to school.

Working out :

10 x 18 = 180

180 ÷ 10 = 18