Add 20/21 and 49/16
1st number: 20/21, 2nd number: 3 1/16
20/21 + 49/16 is 1349/336.
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,
20/21 = 20 × 16/21 × 16 = 320/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
49/16 = 49 × 21/16 × 21 = 1029/336 - Add the two like fractions:
320/336 + 1029/336 = 320 + 1029/336 = 1349/336 - So, 20/21 + 49/16 = 1349/336
In mixed form: 45/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21+49/16 20/21+98/16 20/42+49/16 20/21+49/32 60/21+49/16 20/63+49/16 20/21+49/48 20/21+49/80