Add 18/28 and 6/15
18/28 + 6/15 is 73/70.
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,
18/28 = 18 × 15/28 × 15 = 270/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
6/15 = 6 × 28/15 × 28 = 168/420 - Add the two like fractions:
270/420 + 168/420 = 270 + 168/420 = 438/420 - 438/420 simplified gives 73/70
- So, 18/28 + 6/15 = 73/70
In mixed form: 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+6/15 18/28+12/15 18/56+6/15 18/28+6/30 54/28+6/15 18/28+18/15 18/84+6/15 18/28+6/45 90/28+6/15 18/28+30/15 18/28+6/75 18/28+42/15