Add 35/72 and 90/42
1st number: 35/72, 2nd number: 2 6/42
35/72 + 90/42 is 1325/504.
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,
35/72 = 35 × 7/72 × 7 = 245/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
90/42 = 90 × 12/42 × 12 = 1080/504 - Add the two like fractions:
245/504 + 1080/504 = 245 + 1080/504 = 1325/504 - So, 35/72 + 90/42 = 1325/504
In mixed form: 2317/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+90/42 35/72+90/84