Add 27/28 and 84/20
1st number: 27/28, 2nd number: 4 4/20
27/28 + 84/20 is 723/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
84/20 = 84 × 7/20 × 7 = 588/140 - Add the two like fractions:
135/140 + 588/140 = 135 + 588/140 = 723/140 - So, 27/28 + 84/20 = 723/140
In mixed form: 523/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+84/20 27/56+84/20 27/28+84/40 81/28+84/20 27/84+84/20 27/28+84/60