Question
Evaluate:
$\frac{3}{4}-\frac{4}{5}$
$\frac{3}{4}-\frac{4}{5}$
✓
Answer
$\frac{3}{4}-\frac{4}{5}$ LCM of 4 and 5 = 20 $\frac{3}{4}=\frac{3\times5}{4\times5}=\frac{15}{20}$ $\frac{4}{5}=\frac{4\times4}{5\times4}=\frac{16}{20}$ $\therefore\frac{3}{4}-\frac{4}{5}$ $=\frac{15}{20}-\frac{16}{20}$ $=\frac{15-16}{20}$$=\frac{-1}{20}$
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