1 3 5/7+ 2 4/5+3 5/7=

1)3 5/7+2 4/5+3 5/7
=26/7+14/5+26/7
=130/35+84/35+130/35
=344/35
=9 29/35

2)3/8+2/4+3/5
=15/40+20/40+24/40
=59/40
=1 19/40

3)5 6/8+3/4+5/24
=46/8+3/4+5/24
=138/24+18/24+5/24
=161/24
=6 17/24

4)3 7/8- 2 2/5
=31/8-12/5
=155/40-96/40
=59/40
=1 19/40