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Peter bought 4/8 kg of grapes. Joe bought 6/8 kg. Who bought more grapes? And by how much more?

Sagot :

Joe bought more grapes because 6/8 - 4/8 = 2/8
In comparing two fractions, a/b and c/d, one can use cross multiplication.
If ad > bc, then a/b > c/d. If bc > ad, then c/d > a/b. If bc = ad, then a/b = c/d

Applying that concept to your question, we cross multiply 4/8 and 6/8
Is 8*4 > 8*6? No.
Is 8*6 > 8*4? Yes! Since 6/8 > 4/8, then Joe bought mroe grapes than Peter.