Class 7, Maths, Chapter 9, Exercise 9.2 Solutions
Q.1. Find the sum:
(i) $\frac{5}{4}+\left( \frac{-11}{4} \right)$
(ii) $\frac{5}{3}+\frac{3}{5}$
(iii) $\frac{-9}{10}+\frac{22}{15}$
(iv) $\frac{-3}{-11}+\frac{5}{9}$
(v) $\frac{-8}{19}+\frac{(-2)}{57}$
(vi) $\frac{-2}{3}+0$
(vii) $-2\frac{1}{3}+4\frac{3}{5}$
Q.2. Find
(i) $\frac{7}{24}-\frac{17}{36}$
(ii) $\frac{5}{63}-\left( \frac{-6}{21} \right)$
(iii) $\frac{-6}{13}-\left( \frac{-7}{15} \right)$
(iv) $\frac{-3}{8}-\frac{7}{11}$
(v) $-2\frac{1}{9}-6$
Q.3. Find the product:
(i) $\frac{9}{2}\times \left( \frac{-7}{4} \right)$
(ii) $\frac{3}{10}\times (-9)$
(iii) $\frac{-6}{5}\times \frac{9}{11}$
(iv) $\frac{3}{7}\times \left( \frac{-2}{5} \right)$
(v) $\frac{3}{11}\times \frac{2}{5}$
(vi) $\frac{3}{-5}\times \frac{-5}{3}$
Q.4. find the value of:
(i) $(-4)\div \frac{2}{3}$
(ii) $\frac{-3}{5}\div 2$
(iii) $\frac{-4}{5}\div (-3)$
(iv) $\frac{-1}{8}\div \frac{3}{4}$
(v) $\frac{-2}{13}\div \frac{1}{7}$
(vi) $\frac{-7}{12}\div \left( \frac{-2}{13} \right)$
(vii) $\frac{3}{13}\div \left( \frac{-4}{65} \right)$
