Question
Find the difference: $2\frac{3}{10}-1\frac{7}{15}$
✓
Answer
$2\frac{3}{10}-1\frac{7}{15}$ $=\frac{23}{10}-\frac{22}{15}$
$L.C.M$ of $10$ and $15 = (2 \times 3 \times 5) = 30$
$=\frac{(69-44)}{30}$ $=\frac{25}{30}$
$=\frac{5}{6}$ $\Big(\frac{30}{10}=3,3\times23=69\Big)$ and $\Big(\frac{30}{15}=2,2\times22=44\Big)$
$L.C.M$ of $10$ and $15 = (2 \times 3 \times 5) = 30$
$=\frac{(69-44)}{30}$ $=\frac{25}{30}$
$=\frac{5}{6}$ $\Big(\frac{30}{10}=3,3\times23=69\Big)$ and $\Big(\frac{30}{15}=2,2\times22=44\Big)$
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