Add 72/7 and 84/10
1st number: 10 2/7, 2nd number: 8 4/10
72/7 + 84/10 is 654/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
72/7 = 72 × 10/7 × 10 = 720/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
84/10 = 84 × 7/10 × 7 = 588/70 - Add the two like fractions:
720/70 + 588/70 = 720 + 588/70 = 1308/70 - 1308/70 simplified gives 654/35
- So, 72/7 + 84/10 = 654/35
In mixed form: 1824/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+84/10 72/7+84/20 72/21+84/10 72/7+84/30 72/35+84/10 72/7+84/50 72/49+84/10 72/7+84/70