Solve the following
a)12/5 + -3/10
b)2/7 - -3/10
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Step-by-step explanation:
a)12/5+(-3/10)
=12/5-3/10
=(2×12-1×3)/10
=(24-3)/10
=21/10
b)2/7-(-3/10)
=2/7+3/10
=(10×2+7×3)/70
=(20+21)/70
=41/70
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