Add 90/72 and 8/42, Solve 1 18/72 + 8/42 as a fraction

Add 90/72 and 8/42

1^st number: 1 18/72, 2^nd number: 8/42

90/72 + 8/42 is 121/84.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504
Likewise, for the 2nd fraction, since 42 × 12 = 504,
8/42 = 8 × 12/42 × 12 = 96/504
Add the two like fractions:
630/504 + 96/504 = 630 + 96/504 = 726/504
726/504 simplified gives 121/84
So, 90/72 + 8/42 = 121/84
In mixed form: 137/84

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