Question

4*(2 12+1 34)-(6 23+4 45)

Answer 1

$4 times (2 frac{1}{2} + 1 frac{3}{4} ) - (6 frac{2}{3} + 4 frac{4}{5} ) = 4 timesfrac{17}{4} - frac{172}{15} = 17 - 11 frac{7}{15} = 5 frac{8}{15}$