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

Add 15/12 and 15/70

1^st number: 1 3/12, 2^nd number: 15/70

15/12 + 15/70 is 41/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
15/12 = 15 × 35/12 × 35 = 525/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
15/70 = 15 × 6/70 × 6 = 90/420
Add the two like fractions:
525/420 + 90/420 = 525 + 90/420 = 615/420
615/420 simplified gives 41/28
So, 15/12 + 15/70 = 41/28
In mixed form: 113/28

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