Add 10/84 and 14/15
10/84 + 14/15 is 221/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
10/84 = 10 × 5/84 × 5 = 50/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
14/15 = 14 × 28/15 × 28 = 392/420 - Add the two like fractions:
50/420 + 392/420 = 50 + 392/420 = 442/420 - 442/420 simplified gives 221/210
- So, 10/84 + 14/15 = 221/210
In mixed form: 111/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/84+14/15 10/84+28/15 10/84+14/30 30/84+14/15 10/84+42/15 10/84+14/45 50/84+14/15 10/84+70/15 10/84+14/75 70/84+14/15 10/84+98/15