Multiple Choice

$0,75 -\Box =\frac{1}{4}$ ($\frac{1}{2}$) (!$0,25$) (!$\frac{1}{4}$) ($50%$)

$frac{5}{32} +\Box =\frac2{3}{4}$ ($\frac2{8}{32}$) (!$frac2{7}{32}$) (! ) (!$frac1{3}{15}$)