Add 9/3 and 36/21
1st number: 3 0/3, 2nd number: 1 15/21
9/3 + 36/21 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
9/3 = 9 × 7/3 × 7 = 63/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
36/21 = 36 × 1/21 × 1 = 36/21 - Add the two like fractions:
63/21 + 36/21 = 63 + 36/21 = 99/21 - 99/21 simplified gives 33/7
- So, 9/3 + 36/21 = 33/7
In mixed form: 45/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3+36/21 9/3+72/21 9/6+36/21 9/3+36/42 27/3+36/21 9/3+36/63 45/3+36/21 9/15+36/21 63/3+36/21 9/21+36/21