Add 6/15 and 20/28
6/15 + 20/28 is 39/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
6/15 = 6 × 28/15 × 28 = 168/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Add the two like fractions:
168/420 + 300/420 = 168 + 300/420 = 468/420 - 468/420 simplified gives 39/35
- So, 6/15 + 20/28 = 39/35
In mixed form: 14/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15+20/28 6/15+40/28 6/30+20/28 6/15+20/56 18/15+20/28 6/15+60/28 6/45+20/28 6/15+20/84 30/15+20/28 6/75+20/28 42/15+20/28