Add 5/42 and 6/12
5/42 + 6/12 is 13/21.
Steps for adding fractions
- 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,
5/42 = 5 × 2/42 × 2 = 10/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
6/12 = 6 × 7/12 × 7 = 42/84 - Add the two like fractions:
10/84 + 42/84 = 10 + 42/84 = 52/84 - 52/84 simplified gives 13/21
- So, 5/42 + 6/12 = 13/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+6/12 5/84+6/12 5/42+6/24 15/42+6/12 5/42+18/12 5/42+6/36 25/42+6/12 5/42+30/12 5/42+6/60 35/42+6/12 5/42+42/12 5/42+6/84