Add 6/28 and 7/20
6/28 + 7/20 is 79/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
6/28 = 6 × 5/28 × 5 = 30/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Add the two like fractions:
30/140 + 49/140 = 30 + 49/140 = 79/140 - So, 6/28 + 7/20 = 79/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28+7/20 6/28+14/20 6/56+7/20 6/28+7/40 18/28+7/20 6/28+21/20 6/84+7/20 6/28+7/60 30/28+7/20 6/28+35/20 42/28+7/20 6/28+49/20