Add 20/15 and 4/14
1st number: 1 5/15, 2nd number: 4/14
20/15 + 4/14 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
20/15 = 20 × 14/15 × 14 = 280/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
4/14 = 4 × 15/14 × 15 = 60/210 - Add the two like fractions:
280/210 + 60/210 = 280 + 60/210 = 340/210 - 340/210 simplified gives 34/21
- So, 20/15 + 4/14 = 34/21
In mixed form: 113/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+4/14 20/15+8/14 20/30+4/14 20/15+4/28 60/15+4/14 20/15+12/14 20/45+4/14 20/15+4/42 20/15+20/14 20/75+4/14 20/15+4/70 20/15+28/14 20/15+4/98