Add 10/28 and 80/70
1st number: 10/28, 2nd number: 1 10/70
10/28 + 80/70 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
80/70 = 80 × 2/70 × 2 = 160/140 - Add the two like fractions:
50/140 + 160/140 = 50 + 160/140 = 210/140 - 210/140 simplified gives 3/2
- So, 10/28 + 80/70 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28+80/70 10/56+80/70 30/28+80/70 10/84+80/70 50/28+80/70 70/28+80/70