Add 40/15 and 21/16
1st number: 2 10/15, 2nd number: 1 5/16
40/15 + 21/16 is 191/48.
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,
40/15 = 40 × 16/15 × 16 = 640/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Add the two like fractions:
640/240 + 315/240 = 640 + 315/240 = 955/240 - 955/240 simplified gives 191/48
- So, 40/15 + 21/16 = 191/48
In mixed form: 347/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+21/16 40/15+42/16 40/30+21/16 40/15+21/32 40/15+63/16 40/45+21/16 40/15+21/48 40/75+21/16 40/15+21/80