Add 84/42 and 2/12, Solve 2 0/42 + 2/12 as a fraction

Add 84/42 and 2/12

1^st number: 2 0/42, 2^nd number: 2/12

84/42 + 2/12 is 13/6.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
84/42 = 84 × 2/42 × 2 = 168/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84
Add the two like fractions:
168/84 + 14/84 = 168 + 14/84 = 182/84
182/84 simplified gives 13/6
So, 84/42 + 2/12 = 13/6
In mixed form: 21/6

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad