Add 20/84 and 6/12
20/84 + 6/12 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
6/12 = 6 × 7/12 × 7 = 42/84 - Add the two like fractions:
20/84 + 42/84 = 20 + 42/84 = 62/84 - 62/84 simplified gives 31/42
- So, 20/84 + 6/12 = 31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+6/12 20/84+6/24 60/84+6/12 20/84+18/12 20/84+6/36 20/84+30/12 20/84+6/60 20/84+42/12 20/84+6/84