How do you evaluate x + y for x= 4/5 and y=7/10?

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Answer 1 · 2015-06-12T23:05:03

#x+y = 4/5 + 7/10 = 8/10+7/10 = 15/10 = 3/2#

To add fractions, you first need to give them common denominators, then just add the numerators...

#x+y = 4/5 + 7/10#

#=2/2*4/5+7/10#

#= (2*4)/(2*5) + 7/10#

#= 8/10 + 7/10#

#= 15/10#

#= (3*5)/(2*5)#

#= 3/2*5/5#

#= 3/2#