Add 3/15 and 2/28
3/15 + 2/28 is 19/70.
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,
3/15 = 3 × 28/15 × 28 = 84/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Add the two like fractions:
84/420 + 30/420 = 84 + 30/420 = 114/420 - 114/420 simplified gives 19/70
- So, 3/15 + 2/28 = 19/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+2/28 3/15+4/28 3/30+2/28 3/15+2/56 9/15+2/28 3/15+6/28 3/45+2/28 3/15+2/84 3/15+10/28 3/75+2/28 21/15+2/28 3/15+14/28