Add 35/56 and 90/72
1st number: 35/56, 2nd number: 1 18/72
35/56 + 90/72 is 15/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
35/56 = 35 × 9/56 × 9 = 315/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504 - Add the two like fractions:
315/504 + 630/504 = 315 + 630/504 = 945/504 - 945/504 simplified gives 15/8
- So, 35/56 + 90/72 = 15/8
In mixed form: 17/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56+90/72