Question

1)6 13\21 + 2 9\14 2)5 1\6 - 3 3\4

Answer 1

1)
6 13/21+2 9/14=139/21+31/14=278/42+93/42=371/42=8 35/42
2)5 1/6 -3 3/4=31/6-15/4=62/12-45/12=17/12=1 5/12