Add 63/84 and 9/16
63/84 + 9/16 is 21/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
63/84 = 63 × 4/84 × 4 = 252/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
9/16 = 9 × 21/16 × 21 = 189/336 - Add the two like fractions:
252/336 + 189/336 = 252 + 189/336 = 441/336 - 441/336 simplified gives 21/16
- So, 63/84 + 9/16 = 21/16
In mixed form: 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/84+18/16 63/84+9/32 63/84+27/16 63/84+9/48 63/84+45/16 63/84+9/80 63/84+63/16