Add 40/12 and 3/84
1st number: 3 4/12, 2nd number: 3/84
40/12 + 3/84 is 283/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
40/12 = 40 × 7/12 × 7 = 280/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
3/84 = 3 × 1/84 × 1 = 3/84 - Add the two like fractions:
280/84 + 3/84 = 280 + 3/84 = 283/84 - So, 40/12 + 3/84 = 283/84
In mixed form: 331/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+3/84 40/12+6/84 40/24+3/84 40/12+9/84 40/36+3/84 40/12+15/84 40/60+3/84 40/12+21/84 40/84+3/84