Question

Mark (✓) against the correct answer
What should be subtracted from $\frac{-2}{3}$ to get $\frac{3}{4}$?
(a) $\frac{-17}{12}$
(b) $\frac{17}{12}$
(c) $\frac{-12}{17}$
(d) $\frac{12}{17}$

Answer 1

$\begin{array}{l}\left(\text{a}\right)\frac{-17}{12}\\ \mathrm{Let}\mathrm{the}\mathrm{number}\mathrm{to}\mathrm{be}\mathrm{subtracted}\mathrm{be}x.\\ \frac{-2}{3}-x=\frac{3}{4}\\ \begin{array}{l}\text{=> x =}\frac{-2}{3}-\frac{3}{4}\\ \mathrm{L}.\mathrm{C}.\mathrm{M}.\mathrm{of}3\mathrm{and}4\mathrm{is}12.\\ \begin{array}{l}=\frac{-8-9}{12}\\ =\frac{-17}{12}\end{array}\end{array}\end{array}$