Add 81/16 and 40/15
1st number: 5 1/16, 2nd number: 2 10/15
81/16 + 40/15 is 371/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
81/16 = 81 × 15/16 × 15 = 1215/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
40/15 = 40 × 16/15 × 16 = 640/240 - Add the two like fractions:
1215/240 + 640/240 = 1215 + 640/240 = 1855/240 - 1855/240 simplified gives 371/48
- So, 81/16 + 40/15 = 371/48
In mixed form: 735/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16+80/15 81/32+40/15 81/16+40/30 81/48+40/15 81/16+40/45 81/80+40/15 81/16+40/75