Add 35/42 and 50/72
35/42 + 50/72 is 55/36.
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,
35/42 = 35 × 12/42 × 12 = 420/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
50/72 = 50 × 7/72 × 7 = 350/504 - Add the two like fractions:
420/504 + 350/504 = 420 + 350/504 = 770/504 - 770/504 simplified gives 55/36
- So, 35/42 + 50/72 = 55/36
In mixed form: 119/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+50/72 35/84+50/72