Add 35/28 and 20/12
1st number: 1 7/28, 2nd number: 1 8/12
35/28 + 20/12 is 35/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
35/28 = 35 × 3/28 × 3 = 105/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
20/12 = 20 × 7/12 × 7 = 140/84 - Add the two like fractions:
105/84 + 140/84 = 105 + 140/84 = 245/84 - 245/84 simplified gives 35/12
- So, 35/28 + 20/12 = 35/12
In mixed form: 211/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+20/12 35/28+40/12 35/56+20/12 35/28+20/24 35/28+60/12 35/84+20/12 35/28+20/36 35/28+20/60 35/28+20/84