Add 30/28 and 80/5
1st number: 1 2/28, 2nd number: 16 0/5
30/28 + 80/5 is 239/14.
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,
30/28 = 30 × 5/28 × 5 = 150/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
80/5 = 80 × 28/5 × 28 = 2240/140 - Add the two like fractions:
150/140 + 2240/140 = 150 + 2240/140 = 2390/140 - 2390/140 simplified gives 239/14
- So, 30/28 + 80/5 = 239/14
In mixed form: 171/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+80/5 30/56+80/5 30/28+80/10 90/28+80/5 30/84+80/5 30/28+80/15 30/28+80/25 30/28+80/35