1целая 3/5 × 0,5+0,16×1целую 1/4

=1,6*0,5+0,16*1,25=0,8+0,2=1 =======================

[latex]1 \frac{3}{5} * \frac{1}{2} + \frac{16}{100} * 1 \frac{1}{4} = \frac{8}{5} * \frac{1}{2} + \frac{4}{25} * \frac{5}{4} = \frac{8}{10} + \frac{20}{100} = \frac{4}{5} + \frac{1}{5} = \frac{5}{5} = 1[/latex]