Add 12/14 and 84/42
1st number: 12/14, 2nd number: 2 0/42
12/14 + 84/42 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
12/14 = 12 × 3/14 × 3 = 36/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
84/42 = 84 × 1/42 × 1 = 84/42 - Add the two like fractions:
36/42 + 84/42 = 36 + 84/42 = 120/42 - 120/42 simplified gives 20/7
- So, 12/14 + 84/42 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+84/42 12/28+84/42 36/14+84/42 12/42+84/42 60/14+84/42 12/70+84/42 84/14+84/42 12/98+84/42