Question
Find the difference of:
$\frac{21}{25}\text{ and }\frac{18}{20}$
$\frac{21}{25}\text{ and }\frac{18}{20}$
✓
Answer
We have,
$\frac{21}{25}\text{ and }\frac{18}{20}$
Taking out the LCM of 25 and 20, we get
5 × 5 × 4 = 100
Now, we convert the given fractions tp equivalent fractions by making the denominators 100
$\frac{21\times4}{25\times4}\text{ and }\frac{18\times5}{20\times5}$
The difference between both the fractions are,
$=\frac{90-84}{100}$
$=\frac{6}{100}$
$=\frac{3}{50}$
$\frac{21}{25}\text{ and }\frac{18}{20}$
Taking out the LCM of 25 and 20, we get
5 × 5 × 4 = 100
Now, we convert the given fractions tp equivalent fractions by making the denominators 100
$\frac{21\times4}{25\times4}\text{ and }\frac{18\times5}{20\times5}$
The difference between both the fractions are,
$=\frac{90-84}{100}$
$=\frac{6}{100}$
$=\frac{3}{50}$
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