Question

22.2 : 5 2/7 - 2 3/5 = ?

Answer 1

$22.2 div 5 frac{2}{7} - 2 frac{3}{5} = 22 frac{2}{10} div 5 frac{2}{7} - 2 frac{3}{5} = frac{222 times 7}{10 times 37} - 2 frac{3}{5} = 4 frac{1}{5} - 2 frac{3}{5} = 1 frac{3}{5} = 1.6$