Jharne De and Ranjana Kumar Solutions for Chapter: Rational Numbers, Exercise 3: EXERCISE 3.2

If the simplification of $\frac{4}{7}-\frac{-3}{8}$ is of the form $\frac{k}{m},$ then find the value of $k+m.$

If $\frac{-9}{10}+\frac{4}{-7}=\frac{p}{q}$, then find $p+q$.

Solve the following:

$\frac{15}{16}+\frac{-7}{8}$

Simplify $\frac{-4}{14}-\frac{-5}{-7}$.

Simplify:
$\frac{3}{4}+\frac{-4}{9}-\frac{7}{4}$

Simplify:
$\frac{-3}{18}+\frac{-2}{9}-\frac{2}{3}$

Simplify:
$\frac{-1}{8}+\frac{5}{12}+\frac{-1}{12}$

Simplify:
$3\frac{1}{4}+\frac{7}{12}-\frac{5}{6}$