Alex and Shalini had 5-7 and 7-9 of a pizza respectively- who ate more-

We need to compare how much Alex and Shalini ate by comparing the two fractions 5/7 nbsp; ___ nbsp; 7/9 nbsp;= 5 × 9/7 × 9 ___ 7 × 7/9 × 7 5/7 nbsp; ...

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Byju's Answer

Standard VIII

Mathematics

Finding Rational Numbers Between Two Rational Numbers Using Equivalent Rational Numbers

Alex and Shal...

Question

Alex and Shalini had $\frac{5}{7}$ and $\frac{7}{9}$ of a pizza respectively, who ate more?

Alex

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Shalini

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Both ate equal amounts

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Cannot be determined

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Solution

The correct option is B Shalini
We need to compare how much Alex and Shalini ate by comparing the two fractions
$\frac{5}{7}$ _ $\frac{7}{9}$ = $\frac{5 \times 9}{7 \times 9}$ _ $\frac{7 \times 7}{9 \times 7}$

$\frac{5}{7}$ ___ $\frac{7}{9}$ = $\frac{45}{63}$ < $\frac{49}{63}$ = $\frac{5}{7}$ < $\frac{7}{9}$

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Alex and Shalini had 57 and 79 of a pizza respectively, who ate more?

The correct option is B ShaliniWe need to compare how much Alex and Shalini ate by comparing the two fractions 57 ___ 79 = 5× 97× 9 ___ 7× 79× 7 57 ___ 79 = 4563 < 4963 = 57 < 79

Alex and Shalini had $\frac{5}{7}$ and $\frac{7}{9}$ of a pizza respectively, who ate more?