Add 1/42 and 35/72
1/42 + 35/72 is 257/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
1/42 = 1 × 12/42 × 12 = 12/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
35/72 = 35 × 7/72 × 7 = 245/504 - Add the two like fractions:
12/504 + 245/504 = 12 + 245/504 = 257/504 - So, 1/42 + 35/72 = 257/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+35/72 1/42+70/72 1/84+35/72 3/42+35/72 5/42+35/72 7/42+35/72