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Rational Numbers — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSRational Numbers3 Marks
Question
Select those rational numbers which can be written as a rational number with denominator $4$:
$\frac{7}{8},\frac{64}{16},\frac{36}{-12},\frac{-16}{17},\frac{5}{-4},\frac{-140}{28}$
✓

Answer

Given rational numbers that can be written as a rational number with denominator $4$ are:
 $\frac{7}{8}$ (On multiplying by $2$) $=\frac{3.5}{4}$
$\frac{64}{16}$ (On multiplying by $4$) $=\frac{16}{4}$
$\frac{36}{-12}$ (On multiplying by $3$) $=\frac{12}{-4}=\frac{-12}{4}$
$=\frac{-16}{17}$ Can,t be expressed with a denominator $4$.
$\frac{5}{-4}$ (On multiplying by $-1$) $=\frac{-5}{4}$
$\frac{140}{28}$ (On multiplying by $7$) $=\frac{20}{4}$

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