Question

What is 1/4 minus 1/5

Answer 1

$\frac{1}{4} - \frac{1}{5}$

First, you have to find a common denominator
The LCM of 4 and 5 is 20

$\frac{5}{20}- \frac{4}{20}$

Subtract the numerators

1/20 is the final answer

Answer 2

$\frac{1}{4}-\frac{1}{5}=\ \ \ \ | make\ common\ denominator\ 20\\\\ \frac{5}{20}-\frac{4}{20}=\frac{5-4}{20}=\frac{1}{20}\\\\ Solution\ is\ \frac{1}{20}.$