Add 80/28 and 14/15
1st number: 2 24/28, 2nd number: 14/15
80/28 + 14/15 is 398/105.
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,
80/28 = 80 × 15/28 × 15 = 1200/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
14/15 = 14 × 28/15 × 28 = 392/420 - Add the two like fractions:
1200/420 + 392/420 = 1200 + 392/420 = 1592/420 - 1592/420 simplified gives 398/105
- So, 80/28 + 14/15 = 398/105
In mixed form: 383/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+28/15 80/56+14/15 80/28+14/30 80/28+42/15 80/84+14/15 80/28+14/45 80/28+70/15 80/28+14/75 80/28+98/15