Add 81/4 and 2/15
1st number: 20 1/4, 2nd number: 2/15
81/4 + 2/15 is 1223/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
81/4 = 81 × 15/4 × 15 = 1215/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
2/15 = 2 × 4/15 × 4 = 8/60 - Add the two like fractions:
1215/60 + 8/60 = 1215 + 8/60 = 1223/60 - So, 81/4 + 2/15 = 1223/60
In mixed form: 2023/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/4+4/15 81/8+2/15 81/4+2/30 81/4+6/15 81/12+2/15 81/4+2/45 81/4+10/15 81/20+2/15 81/4+2/75 81/4+14/15 81/28+2/15