Question
Add the following rational numbers.
$\frac{2}{4}+\frac{2}{10}$
$\frac{2}{4}+\frac{2}{10}$
✓
Answer
We have, $\frac{2}{4}+\frac{2}{10}$
LCM of 4 and 10 is 20
$\frac{2 \times 5}{4 \times 5}=\frac{10}{20}, \frac{2 \times 2}{10 \times 2}=\frac{4}{20}$
So, $\frac{10}{20}+\frac{4}{20}=\frac{10+4}{20}=\frac{14}{20}=\frac{7}{10}$
LCM of 4 and 10 is 20
$\frac{2 \times 5}{4 \times 5}=\frac{10}{20}, \frac{2 \times 2}{10 \times 2}=\frac{4}{20}$
So, $\frac{10}{20}+\frac{4}{20}=\frac{10+4}{20}=\frac{14}{20}=\frac{7}{10}$
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