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Kavya wrote $\frac{5}{8}$ and kept multiplying top and bottom by 2 each time.
After doing this 3 times in a row, what fraction does she get?

Class 7Equivalent Rational NumbersRational Numbers

A $\frac{40}{64}$
B $\frac{20}{32}$
C $\frac{15}{24}$
D $\frac{10}{16}$

Step-by-Step Solution

Multiplying by 2 three times multiplies both by

2^{3} = 8

. So

\frac{5}{8} = \frac{5 \times 8}{8 \times 8} = \frac{40}{64}

.

Answer: A)

\frac{40}{64}

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