Question

Find the sum $:$

$\frac{3}{5}+\frac{2}{7}+\frac{3}{4}$

Answer 1

Step 1 Find the least common multiple ( L.C.M) of denominators of given fraction

L.C.M of $\left(5,7,4\right)$ $=140$

Step 2 Make the equivalent fraction with denominator $42$ and add them

$\Rightarrow \frac{3\times 28+2\times 20+3\times 35}{140}$

$\Rightarrow \frac{84+40+105}{66}$ $=\frac{229}{140}$$=$ $1\frac{89}{140}$

Therefore, sum of $\frac{3}{5}+\frac{2}{7}+\frac{3}{4}$ is $1\frac{89}{140}$