Add 35/12 and 20/72
1st number: 2 11/12, 2nd number: 20/72
35/12 + 20/72 is 115/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
35/12 = 35 × 6/12 × 6 = 210/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
210/72 + 20/72 = 210 + 20/72 = 230/72 - 230/72 simplified gives 115/36
- So, 35/12 + 20/72 = 115/36
In mixed form: 37/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+20/72 35/12+40/72 35/24+20/72 35/12+60/72 35/36+20/72 35/60+20/72 35/84+20/72