Question

Solve $\frac{2}{3}+\frac{1}{7}$

Answer 1

For the $1^{st}$fraction, since $3\times 7=21$

$\frac{2}{3}=\frac{2\times 7}{3\times 7}=\frac{14}{21}$

Likewise, for the $2nd$ fraction, since $7\times 3=21$

$\frac{1}{7}=\frac{1\times 3}{7\times 3}=\frac{3}{21}$

Add the two fraction

$=\frac{14}{21}+\frac{3}{21}=\frac{14+3}{21}=\frac{17}{21}$

$=\frac{2}{3}+\frac{1}{7}is\frac{17}{21}$