Add 8/28 and 80/12
1st number: 8/28, 2nd number: 6 8/12
8/28 + 80/12 is 146/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
8/28 = 8 × 3/28 × 3 = 24/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
80/12 = 80 × 7/12 × 7 = 560/84 - Add the two like fractions:
24/84 + 560/84 = 24 + 560/84 = 584/84 - 584/84 simplified gives 146/21
- So, 8/28 + 80/12 = 146/21
In mixed form: 620/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+80/12 8/56+80/12 8/28+80/24 24/28+80/12 8/84+80/12 8/28+80/36 40/28+80/12 8/28+80/60 56/28+80/12 8/28+80/84