Add 15/28 and 84/35
1st number: 15/28, 2nd number: 2 14/35
15/28 + 84/35 is 411/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
84/35 = 84 × 4/35 × 4 = 336/140 - Add the two like fractions:
75/140 + 336/140 = 75 + 336/140 = 411/140 - So, 15/28 + 84/35 = 411/140
In mixed form: 2131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+84/35 15/56+84/35 15/28+84/70 45/28+84/35 15/84+84/35 75/28+84/35