Add 70/12 and 9/14
1st number: 5 10/12, 2nd number: 9/14
70/12 + 9/14 is 136/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 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 14 × 6 = 84,
9/14 = 9 × 6/14 × 6 = 54/84 - Add the two like fractions:
490/84 + 54/84 = 490 + 54/84 = 544/84 - 544/84 simplified gives 136/21
- So, 70/12 + 9/14 = 136/21
In mixed form: 610/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+18/14 70/24+9/14 70/12+9/28 70/12+27/14 70/36+9/14 70/12+9/42 70/12+45/14 70/60+9/14 70/12+9/70 70/12+63/14 70/84+9/14 70/12+9/98