Add 70/7 and 84/72
1st number: 10 0/7, 2nd number: 1 12/72
70/7 + 84/72 is 67/6.
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,
70/7 = 70 × 72/7 × 72 = 5040/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Add the two like fractions:
5040/504 + 588/504 = 5040 + 588/504 = 5628/504 - 5628/504 simplified gives 67/6
- So, 70/7 + 84/72 = 67/6
In mixed form: 111/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14+84/72 70/21+84/72 70/35+84/72 70/49+84/72