Add 70/12 and 80/3
1st number: 5 10/12, 2nd number: 26 2/3
70/12 + 80/3 is 65/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 3 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
70/12 = 70 × 1/12 × 1 = 70/12 - Likewise, for the 2nd fraction, since 3 × 4 = 12,
80/3 = 80 × 4/3 × 4 = 320/12 - Add the two like fractions:
70/12 + 320/12 = 70 + 320/12 = 390/12 - 390/12 simplified gives 65/2
- So, 70/12 + 80/3 = 65/2
In mixed form: 321/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24+80/3 70/12+80/6 70/36+80/3 70/12+80/9 70/60+80/3 70/12+80/15 70/84+80/3 70/12+80/21