Add 2/12 and 30/21, Solve 2/12 + 1 9/21 as a fraction

Add 2/12 and 30/21

1^st number: 2/12, 2^nd number: 1 9/21

2/12 + 30/21 is 67/42.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84
Likewise, for the 2nd fraction, since 21 × 4 = 84,
30/21 = 30 × 4/21 × 4 = 120/84
Add the two like fractions:
14/84 + 120/84 = 14 + 120/84 = 134/84
134/84 simplified gives 67/42
So, 2/12 + 30/21 = 67/42
In mixed form: 125/42

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