Add 15/12 and 70/72, Solve 1 3/12 + 70/72 as a fraction

Add 15/12 and 70/72

1^st number: 1 3/12, 2^nd number: 70/72

15/12 + 70/72 is 20/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
15/12 = 15 × 6/12 × 6 = 90/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
70/72 = 70 × 1/72 × 1 = 70/72
Add the two like fractions:
90/72 + 70/72 = 90 + 70/72 = 160/72
160/72 simplified gives 20/9
So, 15/12 + 70/72 = 20/9
In mixed form: 22/9

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