9 - 7/15 = 8 15/15 - 7/15 = 8 8/15
11 5/12 - 7 = 4 5/12
13 - 7 3/8 = 12 8/8 - 7 3/8 = 5 5/8
5 3/4 - 3 5/7 = 5 21/28 - 3 20/28 = 2 1/28
6 3/5 - 4 5/7 = 6 21/35 - 4 25/35 = 5 56/35 - 4 25/35 = 1 31/35
25 8/19 + 36 11/19 = 61 19/19 = 62
2 7/12 + 4 13/18 = 2 21/36 + 4 26/36 = 6 47/36 = 7 11/36
2 3/8 + 6 5/12 + 4 5/14 = 2 63/168 + 6 70/168 + 4 60/168 = 12 193/168 = 13 25/168
7 5/18 + 3 8/27 - 6 7/9 = 7 15/54 + 3 16/54 - 6 42/54 = (7 + 3 - 6) + (15/54 + 16/54 - 42/54) = 4 + (31/54 - 42/54) = 4 - 11/54 = 3 43/54
1)910*85=77350
2) 77350/65=1190
3)10+1190=1200
4)10000-1200=8800
B)12000/(840-280*96/42)=60
1)280*96=26880
2)26880/42=640
3)840-640=200
4)12000/200=60
C)3010-5614/7+9042=11250
1)5614/7=802
2) 3010+802=2208
3) 2208+9042=11250
E)(40172-15395/5)*4=
1)15395/5=3079
2)40172-3079=37093
3)37093*4=148372