Add 75/63 and 60/72
1st number: 1 12/63, 2nd number: 60/72
75/63 + 60/72 is 85/42.
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,
75/63 = 75 × 8/63 × 8 = 600/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Add the two like fractions:
600/504 + 420/504 = 600 + 420/504 = 1020/504 - 1020/504 simplified gives 85/42
- So, 75/63 + 60/72 = 85/42
In mixed form: 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: