Monicaa Abhijit Solutions for Chapter: Rational Numbers, Exercise 7: EXERCISE 1.7

Find the multiplicative inverse (or reciprocal) of $\frac{-30}{-19}$.

$\frac{135}{-56}\times$_____$=\frac{-135}{56}$

$\frac{-8}{11}\times \left(\frac{2}{5}+\frac{7}{12}\right)=\left(\frac{-8}{11}\times \frac{2}{5}\right)=\frac{-8}{11}\times$_____

$\frac{46}{63}\times$_____$=0$

$\frac{-19}{25}\times$_____$=1$

 Simplify the following and express the result in the lowest form:

$\frac{5}{8}\times \frac{-6}{20}\times \frac{11}{18}\times \frac{-4}{33}$

 Simplify the following and express the result in the lowest form:

$\frac{-2}{7}\times \frac{-28}{15}\times \frac{5}{-4}\times \frac{3}{8}\times 9$

 Simplify the following and express the result in the lowest form:

$\frac{6}{13}\times \frac{4}{27}\times \frac{39}{24}\times 2$