Add 40/12 and 63/54
1st number: 3 4/12, 2nd number: 1 9/54
40/12 + 63/54 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
40/12 = 40 × 9/12 × 9 = 360/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
63/54 = 63 × 2/54 × 2 = 126/108 - Add the two like fractions:
360/108 + 126/108 = 360 + 126/108 = 486/108 - 486/108 simplified gives 9/2
- So, 40/12 + 63/54 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+63/54 40/24+63/54 40/36+63/54 40/60+63/54 40/84+63/54