Question

(1 2/13 + 1/14) :21/3

Answer 1

$\Big(1 \dfrac{2}{13} + \dfrac{1}{14}\Big)\div \dfrac{21}{3} = 1 \dfrac{28 + 13}{182}\div 7 = 1 \dfrac{41}{182}\div 7 = \dfrac{223}{182}\cdot \dfrac{1}{7} = \dfrac{223}{1274}$