Add 45/28 and 9/72
1st number: 1 17/28, 2nd number: 9/72
45/28 + 9/72 is 97/56.
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,
9/72 = 9 × 7/72 × 7 = 63/504 - Add the two like fractions:
810/504 + 63/504 = 810 + 63/504 = 873/504 - 873/504 simplified gives 97/56
- So, 45/28 + 9/72 = 97/56
In mixed form: 141/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+9/72 45/28+18/72 45/56+9/72 45/28+27/72 45/84+9/72 45/28+45/72 45/28+63/72