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b)1 1\2+4\5=1 5\10+8\10= 2 3\10
c)7 1\2-5 4\9=7 9\18-5 8\18=2 1\18
d) 5 6\7+2 3\4=5 24\28+2 21\28=8 17\28
e)8 1\12-5 1\4=8 1\12-5 3\12=2 10\12
f)6 3\7-2 1\2=6 6\14-2 7\14=3 13\14
x= 1 5/10 - 8/10
x= 15/10 - 8/10
x= 7/10
b) x = 1 1/2 + 4/5
x = 1 5/10 + 8/10
x= 1 13/10
x= 2 3/10
c) x= 7 1/2 - 5 4/9
x= 7 9/18 - 5 8/18
x= 2 1/18