Add 35/28 and 30/72
1st number: 1 7/28, 2nd number: 30/72
35/28 + 30/72 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
35/28 = 35 × 18/28 × 18 = 630/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Add the two like fractions:
630/504 + 210/504 = 630 + 210/504 = 840/504 - 840/504 simplified gives 5/3
- So, 35/28 + 30/72 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+30/72 35/28+60/72 35/56+30/72 35/28+90/72 35/84+30/72