Question
Select those rational numbers which can be written as a rational number with numerator 6:
$\frac{1}{22},\frac{2}{3},\frac{3}{4},\frac{4}{-5},\frac{5}{6},\frac{-6}{7},\frac{-7}{8}$

Answer

Given rational numbers that can be written as a rational number with numerator 6 are:
$\frac{1}{22}$ (On multiplying by 6) $=\frac{6}{132}$
$\frac{2}{3}$ (On multiplying by 3) $=\frac{6}{9}$
$\frac{3}{4}$ (On multiplying by 2) $=\frac{6}{8}$
$\frac{-6}{7}$ (On multiplying by 1) $=\frac{6}{-7}$

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