Add 5/28 and 6/15
5/28 + 6/15 is 81/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
5/28 = 5 × 15/28 × 15 = 75/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
6/15 = 6 × 28/15 × 28 = 168/420 - Add the two like fractions:
75/420 + 168/420 = 75 + 168/420 = 243/420 - 243/420 simplified gives 81/140
- So, 5/28 + 6/15 = 81/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+6/15 5/28+12/15 5/56+6/15 5/28+6/30 15/28+6/15 5/28+18/15 5/84+6/15 5/28+6/45 25/28+6/15 5/28+30/15 5/28+6/75 35/28+6/15 5/28+42/15