Add 50/72 and 45/28
1st number: 50/72, 2nd number: 1 17/28
50/72 + 45/28 is 145/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
50/72 = 50 × 7/72 × 7 = 350/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
45/28 = 45 × 18/28 × 18 = 810/504 - Add the two like fractions:
350/504 + 810/504 = 350 + 810/504 = 1160/504 - 1160/504 simplified gives 145/63
- So, 50/72 + 45/28 = 145/63
In mixed form: 219/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72+90/28 50/72+45/56 50/72+45/84