Add 25/28 and 80/20
1st number: 25/28, 2nd number: 4 0/20
25/28 + 80/20 is 137/28.
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,
25/28 = 25 × 5/28 × 5 = 125/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
80/20 = 80 × 7/20 × 7 = 560/140 - Add the two like fractions:
125/140 + 560/140 = 125 + 560/140 = 685/140 - 685/140 simplified gives 137/28
- So, 25/28 + 80/20 = 137/28
In mixed form: 425/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+80/20 25/56+80/20 25/28+80/40 75/28+80/20 25/84+80/20 25/28+80/60