Question

(3 4/5-2 3/10):1 1/2

Answer 1

$(3 \frac{4}{5} - 2 \frac{3}{10}) \div 1 \frac{1}{2} = (\frac{38}{10} - \frac{23}{10}) \times \frac{2}{3}$

$= \frac{15}{10} \times \frac{2}{3} = \frac{5}{5} \times \frac{1}{1} = 1$