Question
What number should be subtracted from $\frac{3}{7}$ to get $\frac{5}{4}?$
✓
Answer
Let, $x$ be subtracted.
$\therefore\frac{3}{7}=-\text{x}=\frac{5}{4}$
$\Rightarrow\text{x}=\frac{3}{7}-\frac{5}{4}$ $\Rightarrow\text{x}=\frac{12}{28}-\frac{35}{28}$
$\Rightarrow\text{x}=\frac{12-35}{28}=\frac{-23}{28}$
$\therefore\frac{3}{7}=-\text{x}=\frac{5}{4}$
$\Rightarrow\text{x}=\frac{3}{7}-\frac{5}{4}$ $\Rightarrow\text{x}=\frac{12}{28}-\frac{35}{28}$
$\Rightarrow\text{x}=\frac{12-35}{28}=\frac{-23}{28}$
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