Add 32/21 and 20/9
1st number: 1 11/21, 2nd number: 2 2/9
32/21 + 20/9 is 236/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
32/21 = 32 × 3/21 × 3 = 96/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
20/9 = 20 × 7/9 × 7 = 140/63 - Add the two like fractions:
96/63 + 140/63 = 96 + 140/63 = 236/63 - So, 32/21 + 20/9 = 236/63
In mixed form: 347/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/21+20/9 32/21+40/9 32/42+20/9 32/21+20/18 96/21+20/9 32/21+60/9 32/63+20/9 32/21+20/27 32/21+20/45 32/21+20/63