Operations On Rational Numbers — MATHS STD 7 — Question
Gujarat BoardEnglish MediumSTD 7MATHSOperations On Rational Numbers3 Marks
Question
What number should be subtracted from $\frac{-5}{3}$ so as to get $\frac{5}{6}?$
✓
Answer
The required number be $x$ Let $\frac{-5}{3}-\text{x}=\frac{5}{6}$
$\Rightarrow-\text{x}=\frac{5}{6}-\frac{5}{3}$
$\Rightarrow-\text{x}=\frac{5}{6}-\frac{-5\times2}{3\times2}$
$\Rightarrow-\text{x}=\frac{5}{6}-\frac{-5\times2}{3\times2}$
$\Rightarrow-\text{x}=\frac{5}{6}-\frac{-10}{6}$
$\Rightarrow-\text{x}=\frac{5+10}{6}$
$\Rightarrow-\text{x}=\frac{15}{6}$
$\text{x}-\frac{15}{6}$
The required number is $\frac{15}{6}$
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