Add 3/12 and 75/9
1st number: 3/12, 2nd number: 8 3/9
3/12 + 75/9 is 103/12.
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,
3/12 = 3 × 3/12 × 3 = 9/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
75/9 = 75 × 4/9 × 4 = 300/36 - Add the two like fractions:
9/36 + 300/36 = 9 + 300/36 = 309/36 - 309/36 simplified gives 103/12
- So, 3/12 + 75/9 = 103/12
In mixed form: 87/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+75/9 3/24+75/9 3/12+75/18 9/12+75/9 3/36+75/9 3/12+75/27 15/12+75/9 3/60+75/9 3/12+75/45 21/12+75/9 3/84+75/9 3/12+75/63