Add 42/6 and 9/12
1st number: 7 0/6, 2nd number: 9/12
42/6 + 9/12 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
42/6 = 42 × 2/6 × 2 = 84/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
9/12 = 9 × 1/12 × 1 = 9/12 - Add the two like fractions:
84/12 + 9/12 = 84 + 9/12 = 93/12 - 93/12 simplified gives 31/4
- So, 42/6 + 9/12 = 31/4
In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6+9/12 42/6+18/12 42/12+9/12 42/6+9/24 42/6+27/12 42/18+9/12 42/6+9/36 42/6+45/12 42/30+9/12 42/6+9/60 42/6+63/12 42/6+9/84