1) 3/20 + 2/15 = 9/60 + 8/60 = 17/602) 17/32 - 5/12 = 51/96 - 40/96 = 11/963) 11/28 + 9/14 = 22/56 + 36/56 = 58/56 = 14) 35/36 - 41/45 = 175/180 - 164/180 = 11/1805) 3 21/25 + 1 2/5 = 3 + 1 + 21/25 + 2/5 = 4 46/25 + 10/25 = 4 56/25 = 4 4/56) 4 13/16 - 2 3/8 = 4 - 2 + 13/16 - 3/8 = 2 + 13/16 - 6/8 = 2 13/16 - 6/8 = 2 13/16 - 12/16 = 2 1/167) 5 5/6 - 31/48 = 5 - 5 + 48/48 - 31/48 = 0 + 17/48 = 17/488) 6 4/7 - 2 37/77 = 6 - 2 + 4/7 - 37/77 = 4 + 308/539 - 259/539 = 4 + 49/539 = 4 49/539
1) 3/20 + 2/15 = 9/60 + 8/60 = 17/60
2) 17/32 - 5/12 = 51/96 - 40/96 = 11/96
3) 11/28 + 9/14 = 22/56 + 36/56 = 58/56 = 1
4) 35/36 - 41/45 = 175/180 - 164/180 = 11/180
5) 3 21/25 + 1 2/5 = 3 + 1 + 21/25 + 2/5 = 4 46/25 + 10/25 = 4 56/25 = 4 4/5
6) 4 13/16 - 2 3/8 = 4 - 2 + 13/16 - 3/8 = 2 + 13/16 - 6/8 = 2 13/16 - 6/8 = 2 13/16 - 12/16 = 2 1/16
7) 5 5/6 - 31/48 = 5 - 5 + 48/48 - 31/48 = 0 + 17/48 = 17/48
8) 6 4/7 - 2 37/77 = 6 - 2 + 4/7 - 37/77 = 4 + 308/539 - 259/539 = 4 + 49/539 = 4 49/539