Add 30/63 and 60/72
30/63 + 60/72 is 55/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
30/63 = 30 × 8/63 × 8 = 240/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Add the two like fractions:
240/504 + 420/504 = 240 + 420/504 = 660/504 - 660/504 simplified gives 55/42
- So, 30/63 + 60/72 = 55/42
In mixed form: 113/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63+60/72 90/63+60/72