Exemplar exercise problems XXX — task. Mathematics CBSE, Class 8.

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Simplify:

(a)

\frac{3}{7} + \frac{- 2}{21} \times \frac{- 5}{6}

\(=\)

\frac{i}{i}

(b)

\frac{7}{8} + \frac{1}{16} - \frac{1}{12}

\(=\)

\frac{i}{i}

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