Monica Capoor Solutions for Chapter: Rational Numbers, Exercise 4: EXERCISE

If a number $\frac{5}{k}$ is added to $\frac{-9}{16}$ to get $\frac{-7}{48}$, find the value of $k$.

What number should be subtracted from $\frac{-3}{4}$ to get $\frac{5}{6}$.

Subtract the sum of $\frac{1}{2},$ $\frac{1}{3}$ and $\frac{1}{5}$ from the sum of $\frac{3}{2},$ $\frac{1}{2}$ and $1$.

Evaluate the following.
$\frac{-5}{18}-\frac{7}{24}+\frac{5}{12}$

Evaluate the following.
$\frac{-5}{36}+\frac{3}{8}-\frac{-2}{9}$

Evaluate the following.
$\frac{-2}{5}-\frac{-4}{7}-\frac{-3}{10}$

A shopkeeper had a ball of jute string measuring $15\mathrm{m}$ . He sold $2\frac{1}{4}\mathrm{m}$ to the first customer and $3\frac{1}{2}\mathrm{m}$ to the second customer. If the length of the jute string left with him is $B$ meter, then find the value of $B$ in mixed fraction?  

A family bought $5$ litres of cooking oil on the first day of the month. If $1\frac{1}{4}$ litres of oil was left over at the end of the month, then what was the family's consumption of cooking oil during that month?