Add 20/28 and 36/5
1st number: 20/28, 2nd number: 7 1/5
20/28 + 36/5 is 277/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
36/5 = 36 × 28/5 × 28 = 1008/140 - Add the two like fractions:
100/140 + 1008/140 = 100 + 1008/140 = 1108/140 - 1108/140 simplified gives 277/35
- So, 20/28 + 36/5 = 277/35
In mixed form: 732/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28+36/5 20/28+72/5 20/56+36/5 20/28+36/10 60/28+36/5 20/84+36/5 20/28+36/15 20/28+36/25 20/28+36/35