Add 9/72 and 80/70, Solve 9/72 + 1 10/70 as a fraction

Add 9/72 and 80/70

1^st number: 9/72, 2^nd number: 1 10/70

9/72 + 80/70 is 71/56.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 72 × 35 = 2520,
9/72 = 9 × 35/72 × 35 = 315/2520
Likewise, for the 2nd fraction, since 70 × 36 = 2520,
80/70 = 80 × 36/70 × 36 = 2880/2520
Add the two like fractions:
315/2520 + 2880/2520 = 315 + 2880/2520 = 3195/2520
3195/2520 simplified gives 71/56
So, 9/72 + 80/70 = 71/56
In mixed form: 115/56

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