Question
Find the difference of:$\frac{5}{18}$ and $\frac{4}{15}$
✓
Answer
$\frac{5}{18}-\frac{4}{15}$
$=\frac{5\times5}{18\times5}-\frac{4\times6}{15\times6}$
$=\frac{25}{90}-\frac{24}{90}$ (because $LCM$ of $18$ and $15$ is $90$)
$=\frac{25-24}{90}$
$=\frac{1}{90}$
$=\frac{5\times5}{18\times5}-\frac{4\times6}{15\times6}$
$=\frac{25}{90}-\frac{24}{90}$ (because $LCM$ of $18$ and $15$ is $90$)
$=\frac{25-24}{90}$
$=\frac{1}{90}$
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