Add 42/12 and 27/7
1st number: 3 6/12, 2nd number: 3 6/7
42/12 + 27/7 is 103/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
27/7 = 27 × 12/7 × 12 = 324/84 - Add the two like fractions:
294/84 + 324/84 = 294 + 324/84 = 618/84 - 618/84 simplified gives 103/14
- So, 42/12 + 27/7 = 103/14
In mixed form: 75/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+27/7 42/12+54/7 42/24+27/7 42/12+27/14 42/12+81/7 42/36+27/7 42/12+27/21 42/60+27/7 42/12+27/35 42/84+27/7 42/12+27/49