Find the sum or difference. 1 3/10 + 2 2/5
2 answers:
Answer:
turn into top heavy fractions to start off.
whole number X denominator plus numerator
1 X 10 + 3= 13/10
2 X 5 + 2 = 12/5
now need to find a common denominator we can use 10.
5 X 2 = 10 what you do to the bottom you must do to the top.
12 X 2 = 24
the sum should now read
13/10 + 24/10 = 37/10.
to turn back into mixed number work out how many denominators go into numerator.
in this case 3. whatever is left over becomes the numerator. end answer 3 7/10
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