Add 45/28 and 60/72
1st number: 1 17/28, 2nd number: 60/72
45/28 + 60/72 is 205/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
45/28 = 45 × 18/28 × 18 = 810/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Add the two like fractions:
810/504 + 420/504 = 810 + 420/504 = 1230/504 - 1230/504 simplified gives 205/84
- So, 45/28 + 60/72 = 205/84
In mixed form: 237/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+60/72 45/56+60/72 45/84+60/72