Add 70/12 and 9/28
1st number: 5 10/12, 2nd number: 9/28
70/12 + 9/28 is 517/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
70/12 = 70 × 7/12 × 7 = 490/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
9/28 = 9 × 3/28 × 3 = 27/84 - Add the two like fractions:
490/84 + 27/84 = 490 + 27/84 = 517/84 - So, 70/12 + 9/28 = 517/84
In mixed form: 613/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+18/28 70/24+9/28 70/12+9/56 70/12+27/28 70/36+9/28 70/12+9/84 70/12+45/28 70/60+9/28 70/12+63/28 70/84+9/28