Question

Subtract:

${\displaystyle \frac{-5}{8}}$ from ${\displaystyle \frac{-13}{16}}$

Answer 1

${\displaystyle \frac{-5}{8}}$ from ${\displaystyle \frac{-13}{16}}$

2	8, 16
2	4, 8
2	2, 4
2	1, 2
	1, 1

∴ LCM of 8 and 16 = 16

=${\displaystyle \frac{-13}{16}-\left(\frac{-5}{8}\right)}$

=${\displaystyle \frac{-13\times 1}{16\times 1}+\frac{5\times 2}{8\times 2}}$  (∴LCM of 8 and 16=16)

=${\displaystyle \frac{-13+10}{16}=\frac{-3}{16}}$