Add 2/21 and 36/12
1st number: 2/21, 2nd number: 3 0/12
2/21 + 36/12 is 65/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
2/21 = 2 × 4/21 × 4 = 8/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
36/12 = 36 × 7/12 × 7 = 252/84 - Add the two like fractions:
8/84 + 252/84 = 8 + 252/84 = 260/84 - 260/84 simplified gives 65/21
- So, 2/21 + 36/12 = 65/21
In mixed form: 32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+36/12 2/21+72/12 2/42+36/12 2/21+36/24 6/21+36/12 2/63+36/12 10/21+36/12 2/21+36/60 14/21+36/12 2/21+36/84