Add 40/12 and 24/7
1st number: 3 4/12, 2nd number: 3 3/7
40/12 + 24/7 is 142/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 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 7 × 12 = 84,
24/7 = 24 × 12/7 × 12 = 288/84 - Add the two like fractions:
280/84 + 288/84 = 280 + 288/84 = 568/84 - 568/84 simplified gives 142/21
- So, 40/12 + 24/7 = 142/21
In mixed form: 616/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+24/7 40/12+48/7 40/24+24/7 40/12+24/14 40/12+72/7 40/36+24/7 40/12+24/21 40/60+24/7 40/12+24/35 40/84+24/7 40/12+24/49