Add 42/12 and 3/4
1st number: 3 6/12, 2nd number: 3/4
42/12 + 3/4 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
42/12 = 42 × 1/12 × 1 = 42/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
3/4 = 3 × 3/4 × 3 = 9/12 - Add the two like fractions:
42/12 + 9/12 = 42 + 9/12 = 51/12 - 51/12 simplified gives 17/4
- So, 42/12 + 3/4 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+3/4 42/12+6/4 42/24+3/4 42/12+3/8 42/12+9/4 42/36+3/4 42/12+3/12 42/12+15/4 42/60+3/4 42/12+3/20 42/12+21/4 42/84+3/4 42/12+3/28