A = 8/5 - 3/10
A = 16/10 - 3/10
A= 10/10
A= 1
B = (3/18 + 1/18) - (3/9 + 1/9)
B= 4/18 - 4/9
B= 4/18 - 8/18
B= -4/18
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A = 8/5 - 3/10
A = 16/10 - 3/10
A= 10/10
A= 1
B = (3/18 + 1/18) - (3/9 + 1/9)
B= 4/18 - 4/9
B= 4/18 - 8/18
B= -4/18