Add 56/28 and 5/20
1st number: 2 0/28, 2nd number: 5/20
56/28 + 5/20 is 9/4.
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,
56/28 = 56 × 5/28 × 5 = 280/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Add the two like fractions:
280/140 + 35/140 = 280 + 35/140 = 315/140 - 315/140 simplified gives 9/4
- So, 56/28 + 5/20 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/28+10/20 56/28+5/40 56/28+15/20 56/84+5/20 56/28+5/60 56/28+25/20 56/28+35/20