check that a-b not exual b-a for each of the following a=-2/3; b=-7/15
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Answer:
a-b=-2/3-(-7/15)
=-2/3+7/15
=-10+7/15
=-3/15
=-1/5
b-a= -7/15-(-2/3)
=-7/15+2/3
=-7+10/15
=3/15=1/5
a-b is not equal to b-a
-1/5 is not equal to 1/5
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