Add 35/12 and 20/42
1st number: 2 11/12, 2nd number: 20/42
35/12 + 20/42 is 95/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
35/12 = 35 × 7/12 × 7 = 245/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Add the two like fractions:
245/84 + 40/84 = 245 + 40/84 = 285/84 - 285/84 simplified gives 95/28
- So, 35/12 + 20/42 = 95/28
In mixed form: 311/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+20/42 35/12+40/42 35/24+20/42 35/12+20/84 35/12+60/42 35/36+20/42 35/60+20/42 35/84+20/42