Add 84/28 and 6/72
1st number: 3 0/28, 2nd number: 6/72
84/28 + 6/72 is 37/12.
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,
84/28 = 84 × 18/28 × 18 = 1512/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
6/72 = 6 × 7/72 × 7 = 42/504 - Add the two like fractions:
1512/504 + 42/504 = 1512 + 42/504 = 1554/504 - 1554/504 simplified gives 37/12
- So, 84/28 + 6/72 = 37/12
In mixed form: 31/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+12/72 84/56+6/72 84/28+18/72 84/28+30/72 84/28+42/72