Add 63/27 and 45/12
1st number: 2 9/27, 2nd number: 3 9/12
63/27 + 45/12 is 73/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
63/27 = 63 × 4/27 × 4 = 252/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108 - Add the two like fractions:
252/108 + 405/108 = 252 + 405/108 = 657/108 - 657/108 simplified gives 73/12
- So, 63/27 + 45/12 = 73/12
In mixed form: 61/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/27+90/12 63/54+45/12 63/27+45/24 63/81+45/12 63/27+45/36 63/27+45/60 63/27+45/84