Add 14/15 and 12/28
14/15 + 12/28 is 143/105.
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,
14/15 = 14 × 28/15 × 28 = 392/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
12/28 = 12 × 15/28 × 15 = 180/420 - Add the two like fractions:
392/420 + 180/420 = 392 + 180/420 = 572/420 - 572/420 simplified gives 143/105
- So, 14/15 + 12/28 = 143/105
In mixed form: 138/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/15+12/28 14/15+24/28 14/30+12/28 14/15+12/56 42/15+12/28 14/15+36/28 14/45+12/28 14/15+12/84 70/15+12/28 14/15+60/28 14/75+12/28 98/15+12/28 14/15+84/28