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primary 5 | Maths
| Fractions
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Please help and explain. Thank you.
Date Posted: 4 years ago
Views: 235
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Hope this helps
Date Posted:
4 years ago
Thank you. But may I know why do we multiply by 6 for the cookies and puffs?
Cause to get a common multiple for 4 and 6 .. since it is 3/4 and 1/6 .. but is good to change 2/7 = 12/42.
But the answer look not realistic. Total 96.
2/7 of 96 = 2/7 x 96 = 27.4286 ... cookie should be no decimal.. mean 1, 2 , 3....
don’t know I have made any careless mistake?
But the answer look not realistic. Total 96.
2/7 of 96 = 2/7 x 96 = 27.4286 ... cookie should be no decimal.. mean 1, 2 , 3....
don’t know I have made any careless mistake?
Can do this way..
Cookies =2/7
Puff = 5/7
Cookies sold 3/4
Left 1/4
= 2/7 × 1/4
=1/14
Puff sold 1/6
Left 5/6
= 5/7 × 5/6
= 25/42
Total left
= 1/14 + 25/42
= 2/3
2/3→64
3/3= 3/3 × 64 ÷ 2/3
=96.
Cookies =2/7
Puff = 5/7
Cookies sold 3/4
Left 1/4
= 2/7 × 1/4
=1/14
Puff sold 1/6
Left 5/6
= 5/7 × 5/6
= 25/42
Total left
= 1/14 + 25/42
= 2/3
2/3→64
3/3= 3/3 × 64 ÷ 2/3
=96.
Thank you so much. This method is easier to understand and digest.
Thank you.
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