Monica Capoor Solutions for Chapter: Rational Numbers, Exercise 3: EXERCISE

Find the additive inverse of each of the following.
$\frac{-3}{7}$

Find the additive inverse of each of the following.
$\frac{7}{-11}$

Find the additive inverse of each of the following.
$\frac{-16}{15}$

Find the additive inverse of $\frac{-7}{1}$.

Find the additive inverse of $0$.

Find the additive inverse of each of the following.
$\frac{-9}{-7}$

Tanay bought a pen for $₹13\frac{1}{2}$, a book for $₹17\frac{2}{3}$ and an ice cream for $₹15\frac{1}{4}$. How much many did he spend in all? 

On Saturday Diya practiced Maths for $1\frac{3}{4}$ hours, read an English literature book for $1\frac{1}{2}$ hours and did map work for $2\frac{3}{4}$ hours. How much time(in hours) did she spend studying?