Add 8/7 and 9/72, Solve 1 1/7 + 9/72 as a fraction

Add 8/7 and 9/72

1^st number: 1 1/7, 2^nd number: 9/72

8/7 + 9/72 is 71/56.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 7 × 72 = 504,
8/7 = 8 × 72/7 × 72 = 576/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504
Add the two like fractions:
576/504 + 63/504 = 576 + 63/504 = 639/504
639/504 simplified gives 71/56
So, 8/7 + 9/72 = 71/56
In mixed form: 115/56

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