Fractions - Making a whole

 $\frac{3}{5}+\ \frac{?}{5}=1$  Write done the missing number.

 $\frac{?}{7}+\frac{3}{7}=\frac{7}{7}$  , write down the missing number.

 $\frac{4}{9}+\frac{5}{?}=1$  , write down the missing number.

 $\frac{5}{12}+\frac{?}{12}=\frac{12}{12}$  

 $\frac{8}{10}+\frac{2}{?}=\frac{10}{10}$  , write down the missing number.

 $\frac{?}{17}+\frac{4}{17}=\frac{17}{17}$  , write down the missing number.

 $\frac{?}{19}=1$  , write down the missing number.

 $\frac{5}{7}+\frac{2}{?}=1$  , write down the missing number

 $\frac{16}{?}=1$  Write down the missing number

 $\frac{?}{19}=1$  , write down the missing number.