Add 80/12 and 21/49, Solve 6 8/12 + 21/49 as a fraction

Add 80/12 and 21/49

1^st number: 6 8/12, 2^nd number: 21/49

80/12 + 21/49 is 149/21.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 12 × 49 = 588,
80/12 = 80 × 49/12 × 49 = 3920/588
Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588
Add the two like fractions:
3920/588 + 252/588 = 3920 + 252/588 = 4172/588
4172/588 simplified gives 149/21
So, 80/12 + 21/49 = 149/21
In mixed form: 72/21

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