Add 28/4 and 27/20
1st number: 7 0/4, 2nd number: 1 7/20
28/4 + 27/20 is 167/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
28/4 = 28 × 5/4 × 5 = 140/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
27/20 = 27 × 1/20 × 1 = 27/20 - Add the two like fractions:
140/20 + 27/20 = 140 + 27/20 = 167/20 - So, 28/4 + 27/20 = 167/20
In mixed form: 87/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+27/20 28/4+54/20 28/8+27/20 28/4+27/40 84/4+27/20 28/4+81/20 28/12+27/20 28/4+27/60 28/20+27/20