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Question
primary 5 | Maths
| Fractions
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Pls help! This is school homework. Thanks in advance!
【LCM】concept
In the end
A:B:T = 6:1:7 = 30:5:35
at first
A:B:T = 4:1:5 = 28:7:35
change →
30-28 = 7-5 = 2 units → 28
28×(28÷2) = 392 (Ans)
model will be attched in the ans later.
Model updated with
- LCM
- total unchanged
See 1 Answer