Add 20/72 and 50/56
20/72 + 50/56 is 295/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
50/56 = 50 × 9/56 × 9 = 450/504 - Add the two like fractions:
140/504 + 450/504 = 140 + 450/504 = 590/504 - 590/504 simplified gives 295/252
- So, 20/72 + 50/56 = 295/252
In mixed form: 143/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/72+50/56 60/72+50/56