Add 28/12 and 70/7
1st number: 2 4/12, 2nd number: 10 0/7
28/12 + 70/7 is 37/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
28/12 = 28 × 7/12 × 7 = 196/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
70/7 = 70 × 12/7 × 12 = 840/84 - Add the two like fractions:
196/84 + 840/84 = 196 + 840/84 = 1036/84 - 1036/84 simplified gives 37/3
- So, 28/12 + 70/7 = 37/3
In mixed form: 121/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+70/7 28/24+70/7 28/12+70/14 84/12+70/7 28/36+70/7 28/12+70/21 28/60+70/7 28/12+70/35 28/84+70/7 28/12+70/49