Add 12/54 and 63/72
12/54 + 63/72 is 79/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
12/54 = 12 × 4/54 × 4 = 48/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
63/72 = 63 × 3/72 × 3 = 189/216 - Add the two like fractions:
48/216 + 189/216 = 48 + 189/216 = 237/216 - 237/216 simplified gives 79/72
- So, 12/54 + 63/72 = 79/72
In mixed form: 17/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54+63/72 36/54+63/72 60/54+63/72 84/54+63/72