Add 84/7 and 1/72
1st number: 12 0/7, 2nd number: 1/72
84/7 + 1/72 is 865/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
84/7 = 84 × 72/7 × 72 = 6048/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
1/72 = 1 × 7/72 × 7 = 7/504 - Add the two like fractions:
6048/504 + 7/504 = 6048 + 7/504 = 6055/504 - 6055/504 simplified gives 865/72
- So, 84/7 + 1/72 = 865/72
In mixed form: 121/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+2/72 84/14+1/72 84/7+3/72 84/21+1/72 84/7+5/72 84/35+1/72 84/7+7/72 84/49+1/72