Question

Question 2 (i)

Find:
$\frac{7}{24}-\frac{17}{36}$

Answer 1

$\frac{7}{24}-\frac{17}{36}=\frac{7\times 3}{24\times 3}-\frac{17\times 2}{36\times 2}=\frac{21}{72}-\frac{34}{72}$ [L.C.M of 24 and 36 is 72]
$=\frac{21-34}{72}=\frac{-13}{72}$