Add 9/36 and 80/70, Solve 9/36 + 1 10/70 as a fraction

Add 9/36 and 80/70

1^st number: 9/36, 2^nd number: 1 10/70

9/36 + 80/70 is 39/28.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 36 × 35 = 1260,
9/36 = 9 × 35/36 × 35 = 315/1260
Likewise, for the 2nd fraction, since 70 × 18 = 1260,
80/70 = 80 × 18/70 × 18 = 1440/1260
Add the two like fractions:
315/1260 + 1440/1260 = 315 + 1440/1260 = 1755/1260
1755/1260 simplified gives 39/28
So, 9/36 + 80/70 = 39/28
In mixed form: 111/28

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