1) (11/18 - 4/9) 3/16 = (5/18) (3/16) = 15/288 = 5/962) 11/18 - 4/9 3/16 = 11/18 - (1/2 1/4) = 11/18 - 1/8 = 77/1443) 1 3/5 (3/4 + 1 3/8) = 8/5 (3/4 + 11/8) = 8/5 4/2 = 16/5 = 3 1/54) 1 3/5 3/4 + 1 3/8 = 8/5 3/4 + 11/8 = 24/20 + 11/8 = 12/10 + 11/8 = 24/20 + 33/20 = 57/20 = 2 17/205) 13 4/5 - 3 1/5 3 3/4 = 69/5 - (16/5 15/4) = 69/5 - 60/4 = 69/5 - 75/5 = -6/5 = -1 1/56) 1 3/25 2 1/7 - 2 1/9 27/190 = 28/25 15/7 - 19/9 3/190 = 60/7 - 57/570 = 600/70 - 57/570 = 543/570 = 39/507) 4 7/12 1 3/11 + 1 1/15 45/64 = 55/12 14/11 + 16/240 = 770/132 + 16/240 = 385/66 + 1/15 = 230/45 = 46/98) (8 - 2 1/7 3 1/9) 27/44 = (57/7 - 28/9) 27/44 = (729/63 - 352/63) 27/44 = 377/63 27/44 = 377/49) (4/5 + 4/7) (7 11/12 - 5 7/9) = (28/35 + 20/35) 89/12 = 48/35 89/12 = 4272/420 = 356/35 = 10 6/710) 4/5 + 4/7 (7 11/12 - 5 7/9) = 4/5 + 20/35 89/36 = 4/5 + 4/7 * 89/36 = 4/5 + 356/252 = 4/5 + 178/126 = 4/5 + 89/63 = 252/315 + 178/315 = 430/315 = 86/63
1) (11/18 - 4/9) 3/16 = (5/18) (3/16) = 15/288 = 5/96
2) 11/18 - 4/9 3/16 = 11/18 - (1/2 1/4) = 11/18 - 1/8 = 77/144
3) 1 3/5 (3/4 + 1 3/8) = 8/5 (3/4 + 11/8) = 8/5 4/2 = 16/5 = 3 1/5
4) 1 3/5 3/4 + 1 3/8 = 8/5 3/4 + 11/8 = 24/20 + 11/8 = 12/10 + 11/8 = 24/20 + 33/20 = 57/20 = 2 17/20
5) 13 4/5 - 3 1/5 3 3/4 = 69/5 - (16/5 15/4) = 69/5 - 60/4 = 69/5 - 75/5 = -6/5 = -1 1/5
6) 1 3/25 2 1/7 - 2 1/9 27/190 = 28/25 15/7 - 19/9 3/190 = 60/7 - 57/570 = 600/70 - 57/570 = 543/570 = 39/50
7) 4 7/12 1 3/11 + 1 1/15 45/64 = 55/12 14/11 + 16/240 = 770/132 + 16/240 = 385/66 + 1/15 = 230/45 = 46/9
8) (8 - 2 1/7 3 1/9) 27/44 = (57/7 - 28/9) 27/44 = (729/63 - 352/63) 27/44 = 377/63 27/44 = 377/4
9) (4/5 + 4/7) (7 11/12 - 5 7/9) = (28/35 + 20/35) 89/12 = 48/35 89/12 = 4272/420 = 356/35 = 10 6/7
10) 4/5 + 4/7 (7 11/12 - 5 7/9) = 4/5 + 20/35 89/36 = 4/5 + 4/7 * 89/36 = 4/5 + 356/252 = 4/5 + 178/126 = 4/5 + 89/63 = 252/315 + 178/315 = 430/315 = 86/63