Add 1/9 and 36/21
1st number: 1/9, 2nd number: 1 15/21
1/9 + 36/21 is 115/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
1/9 = 1 × 7/9 × 7 = 7/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
36/21 = 36 × 3/21 × 3 = 108/63 - Add the two like fractions:
7/63 + 108/63 = 7 + 108/63 = 115/63 - So, 1/9 + 36/21 = 115/63
In mixed form: 152/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9+36/21 1/9+72/21 1/18+36/21 1/9+36/42 3/9+36/21 1/27+36/21 1/9+36/63 5/9+36/21 1/45+36/21 7/9+36/21 1/63+36/21