Verified Answer :

SmarticalParticals

You have to find the common denominator of the 2 fractions then add the numerators. I've done as many as I could fit. :)

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sorry if i wrong, but i think its just an ordinary calculation?
the right answer for number 4 is 4/5
7/10 + 4/40 = 28/40+4/40 = 32/40 = 4/5..

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