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Question
primary 6 | Maths
| Fractions
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Date Posted: 5 years ago
Views: 259
Fraction = 1 - 1/5 - 3/4
= 20/20 - 4/20 - 15/20
= 1/20
We can treat it as there are 20 units of students.
Now 1/5 = 4/20
So 4 units of students received 1 bun each. Buns = 4units x 1 = 4 units
3/4 = 15/20
So 15 units of students received 2 buns each.
Buns = 15units x 2 = 30 units
1/20
So 1 unit of students received 3 buns each.
Buns = 1unit x 3 = 3 units
Total units of buns
= 3 + 30 + 4 = 37
37 units = 1665
1 unit = 1665 ÷ 37 = 45
Number of children = 20 units
= 20 x 45
= 900
= 20/20 - 4/20 - 15/20
= 1/20
We can treat it as there are 20 units of students.
Now 1/5 = 4/20
So 4 units of students received 1 bun each. Buns = 4units x 1 = 4 units
3/4 = 15/20
So 15 units of students received 2 buns each.
Buns = 15units x 2 = 30 units
1/20
So 1 unit of students received 3 buns each.
Buns = 1unit x 3 = 3 units
Total units of buns
= 3 + 30 + 4 = 37
37 units = 1665
1 unit = 1665 ÷ 37 = 45
Number of children = 20 units
= 20 x 45
= 900
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