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OpenStudy (anonymous):
-1/2+(-2/5) suddenly forgot how to add fractions XDD
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OpenStudy (anonymous):
you can only add the numerators if the denominators are the same
OpenStudy (anonymous):
so -5/10-4/10?
OpenStudy (anonymous):
-9/10?
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
and then simplify if necessary, which in this case it isnt
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