Add 20/28 and 28/7
1st number: 20/28, 2nd number: 4 0/7
20/28 + 28/7 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
20/28 = 20 × 1/28 × 1 = 20/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
28/7 = 28 × 4/7 × 4 = 112/28 - Add the two like fractions:
20/28 + 112/28 = 20 + 112/28 = 132/28 - 132/28 simplified gives 33/7
- So, 20/28 + 28/7 = 33/7
In mixed form: 45/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28+28/7 20/28+56/7 20/56+28/7 20/28+28/14 60/28+28/7 20/28+84/7 20/84+28/7 20/28+28/21 20/28+28/35 20/28+28/49