Add 3/21 and 14/16
3/21 + 14/16 is 57/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
3/21 = 3 × 16/21 × 16 = 48/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
14/16 = 14 × 21/16 × 21 = 294/336 - Add the two like fractions:
48/336 + 294/336 = 48 + 294/336 = 342/336 - 342/336 simplified gives 57/56
- So, 3/21 + 14/16 = 57/56
In mixed form: 11/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21+14/16 3/21+28/16 3/42+14/16 3/21+14/32 9/21+14/16 3/21+42/16 3/63+14/16 3/21+14/48 15/21+14/16 3/21+70/16 3/21+14/80 3/21+98/16