Add 1/72 and 3/42
1/72 + 3/42 is 43/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
1/72 = 1 × 7/72 × 7 = 7/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
3/42 = 3 × 12/42 × 12 = 36/504 - Add the two like fractions:
7/504 + 36/504 = 7 + 36/504 = 43/504 - So, 1/72 + 3/42 = 43/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/72+3/42 1/72+6/42 1/72+3/84 3/72+3/42 1/72+9/42 5/72+3/42 1/72+15/42 7/72+3/42 1/72+21/42