5/9+3/4,23/40-3/8,9/35-3/28

Question

5/9+3/4,23/40-3/8,9/35-3/28

Answer 1

5/9+3/4=(20+27)/36=47/36=1,1/12
23/40-3/8=(23-15)/40=8/40=0,2
9/35-3/28=(36-15)/140=21/140=3/20

Answer 2

5/9+3/4,23/40-3/8,9/35-3/28 =0,45651237624