Add 28/4 and 6/20
1st number: 7 0/4, 2nd number: 6/20
28/4 + 6/20 is 73/10.
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,
6/20 = 6 × 1/20 × 1 = 6/20 - Add the two like fractions:
140/20 + 6/20 = 140 + 6/20 = 146/20 - 146/20 simplified gives 73/10
- So, 28/4 + 6/20 = 73/10
In mixed form: 73/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+6/20 28/4+12/20 28/8+6/20 28/4+6/40 84/4+6/20 28/4+18/20 28/12+6/20 28/4+6/60 28/4+30/20 28/20+6/20 28/4+42/20