Add 5/72 and 20/84
5/72 + 20/84 is 155/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
5/72 = 5 × 7/72 × 7 = 35/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
20/84 = 20 × 6/84 × 6 = 120/504 - Add the two like fractions:
35/504 + 120/504 = 35 + 120/504 = 155/504 - So, 5/72 + 20/84 = 155/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/72+20/84 5/72+40/84 15/72+20/84 5/72+60/84 25/72+20/84 35/72+20/84