Add 84/2 and 81/7
1st number: 42 0/2, 2nd number: 11 4/7
84/2 + 81/7 is 375/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
84/2 = 84 × 7/2 × 7 = 588/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
81/7 = 81 × 2/7 × 2 = 162/14 - Add the two like fractions:
588/14 + 162/14 = 588 + 162/14 = 750/14 - 750/14 simplified gives 375/7
- So, 84/2 + 81/7 = 375/7
In mixed form: 534/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+81/7 84/2+81/14 84/6+81/7 84/2+81/21 84/10+81/7 84/2+81/35 84/14+81/7 84/2+81/49