Add 70/12 and 75/9
1st number: 5 10/12, 2nd number: 8 3/9
70/12 + 75/9 is 85/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
70/12 = 70 × 3/12 × 3 = 210/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
75/9 = 75 × 4/9 × 4 = 300/36 - Add the two like fractions:
210/36 + 300/36 = 210 + 300/36 = 510/36 - 510/36 simplified gives 85/6
- So, 70/12 + 75/9 = 85/6
In mixed form: 141/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24+75/9 70/12+75/18 70/36+75/9 70/12+75/27 70/60+75/9 70/12+75/45 70/84+75/9 70/12+75/63