Add 84/15 and 18/7
1st number: 5 9/15, 2nd number: 2 4/7
84/15 + 18/7 is 286/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
84/15 = 84 × 7/15 × 7 = 588/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
18/7 = 18 × 15/7 × 15 = 270/105 - Add the two like fractions:
588/105 + 270/105 = 588 + 270/105 = 858/105 - 858/105 simplified gives 286/35
- So, 84/15 + 18/7 = 286/35
In mixed form: 86/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+36/7 84/30+18/7 84/15+18/14 84/15+54/7 84/45+18/7 84/15+18/21 84/15+90/7 84/75+18/7 84/15+18/35 84/15+18/49