Add 4/84 and 36/72
4/84 + 36/72 is 23/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
4/84 = 4 × 6/84 × 6 = 24/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Add the two like fractions:
24/504 + 252/504 = 24 + 252/504 = 276/504 - 276/504 simplified gives 23/42
- So, 4/84 + 36/72 = 23/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+36/72 12/84+36/72 20/84+36/72 28/84+36/72