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Rational Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSRational Numbers1 Mark
MCQ
Tick $(\checkmark)$ the correct answer the following: $\Big(\frac{-9}{16}\times\frac{8}{15}\Big)=\ ?$
  • ✓
    $\frac{-3}{10}$
  • B
    $\frac{-4}{15}$
  • C
    $\frac{-9}{25}$
  • D
    $\frac{-2}{5}$
✓

Answer

Correct option: A.
$\frac{-3}{10}$
Solution:  (A) $\frac{-3}{10}$
$=\frac{-9}{16}\times\frac{8}{15}$
$=\frac{-9\times8}{16\times15}$
$=\frac{-72}{240}$
$=\frac{-72\div24}{240\div24}$
$=\frac{-3}{10}$

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