Add 20/7 and 12/36
1st number: 2 6/7, 2nd number: 12/36
20/7 + 12/36 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 7 × 36 = 252,
20/7 = 20 × 36/7 × 36 = 720/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
12/36 = 12 × 7/36 × 7 = 84/252 - Add the two like fractions:
720/252 + 84/252 = 720 + 84/252 = 804/252 - 804/252 simplified gives 67/21
- So, 20/7 + 12/36 = 67/21
In mixed form: 34/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+12/36 20/7+24/36 20/14+12/36 20/7+12/72 60/7+12/36 20/21+12/36 20/7+60/36 20/35+12/36 20/7+84/36 20/49+12/36