Using cross-multiplication, compare 3/5 and 4/7. Which is greater?

3/5. Cross-multiply: 3×7 = 21 and 5×4 = 20. The product 21 is paired with 3/5 and is larger, so 3/5 > 4/7.

Using cross-multiplication, compare $\frac{3}{5}$ and $\frac{4}{7}$ . Which is greater?

Class 6Comparing FractionsFractions

Cross-multiply:

3 \times 7 = 21

and

5 \times 4 = 20

. The product 21 is paired with

\frac{3}{5}

and is larger, so

\frac{3}{5} > \frac{4}{7}

Answer: A)

\frac{3}{5}

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