Add 40/12 and 35/28
1st number: 3 4/12, 2nd number: 1 7/28
40/12 + 35/28 is 55/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 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 28 × 3 = 84,
35/28 = 35 × 3/28 × 3 = 105/84 - Add the two like fractions:
280/84 + 105/84 = 280 + 105/84 = 385/84 - 385/84 simplified gives 55/12
- So, 40/12 + 35/28 = 55/12
In mixed form: 47/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+35/28 40/12+70/28 40/24+35/28 40/12+35/56 40/36+35/28 40/12+35/84 40/60+35/28 40/84+35/28