Add 21/14 and 35/15
1st number: 1 7/14, 2nd number: 2 5/15
21/14 + 35/15 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
35/15 = 35 × 14/15 × 14 = 490/210 - Add the two like fractions:
315/210 + 490/210 = 315 + 490/210 = 805/210 - 805/210 simplified gives 23/6
- So, 21/14 + 35/15 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+35/15 21/14+70/15 21/28+35/15 21/14+35/30 63/14+35/15 21/42+35/15 21/14+35/45 21/70+35/15 21/14+35/75 21/98+35/15