Add 1/15 and 81/16
1st number: 1/15, 2nd number: 5 1/16
1/15 + 81/16 is 1231/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
1/15 = 1 × 16/15 × 16 = 16/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
81/16 = 81 × 15/16 × 15 = 1215/240 - Add the two like fractions:
16/240 + 1215/240 = 16 + 1215/240 = 1231/240 - So, 1/15 + 81/16 = 1231/240
In mixed form: 531/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+81/16 1/30+81/16 1/15+81/32 3/15+81/16 1/45+81/16 1/15+81/48 5/15+81/16 1/75+81/16 1/15+81/80 7/15+81/16