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Fractions and Decimals — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSFractions and Decimals1 Mark
MCQ
Mark $(\checkmark)$ against the correct answer in the following: By what number should $1\frac{3}{4}$ be divided to get $2\frac{1}{2}?$
  • A
    $\frac{3}{7}$
  • B
    $1\frac{2}{5}$
  • ✓
    $\frac{7}{10}$
  • D
    $1\frac{3}{7}$
✓

Answer

Correct option: C.
$\frac{7}{10}$
Required number $=1\frac{3}{4}\div2\frac{1}{2}$
$=\frac{7}{4}\div\frac{5}{2}$
$=\frac{7}{4}\times\frac{2}{5}$
$\Big[\because$ Reciprocal of $\frac{2}{5}=\frac{2}{5}\Big]$
$=\frac{7\times1}{2\times5}$
$=\frac{7}{10}$

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