Adding Mixed Numbers

Question 1:

1 \frac{7}{9} + 2 \frac{3}{4}

\frac{163}{36} = 4 \frac{19}{36}

Question 2:

1 \frac{2}{3} + 1 \frac{1}{7}

\frac{59}{21} = 2 \frac{17}{21}

Question 3:

2 \frac{2}{5} + 3 \frac{2}{9}

\frac{253}{45} = 5 \frac{28}{45}

Question 4:

2 \frac{3}{7} + 4 \frac{5}{6}

\frac{305}{42} = 7 \frac{11}{42}