Add 60/72 and 18/42
60/72 + 18/42 is 53/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
18/42 = 18 × 12/42 × 12 = 216/504 - Add the two like fractions:
420/504 + 216/504 = 420 + 216/504 = 636/504 - 636/504 simplified gives 53/42
- So, 60/72 + 18/42 = 53/42
In mixed form: 111/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+36/42 60/72+18/84 60/72+54/42 60/72+90/42