Add 63/54 and 45/12
1st number: 1 9/54, 2nd number: 3 9/12
63/54 + 45/12 is 59/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
63/54 = 63 × 2/54 × 2 = 126/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108 - Add the two like fractions:
126/108 + 405/108 = 126 + 405/108 = 531/108 - 531/108 simplified gives 59/12
- So, 63/54 + 45/12 = 59/12
In mixed form: 411/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/54+90/12 63/54+45/24 63/54+45/36 63/54+45/60 63/54+45/84