Add 16/9 and 27/21
1st number: 1 7/9, 2nd number: 1 6/21
16/9 + 27/21 is 193/63.
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,
16/9 = 16 × 7/9 × 7 = 112/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
27/21 = 27 × 3/21 × 3 = 81/63 - Add the two like fractions:
112/63 + 81/63 = 112 + 81/63 = 193/63 - So, 16/9 + 27/21 = 193/63
In mixed form: 34/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9+27/21 16/9+54/21 16/18+27/21 16/9+27/42 48/9+27/21 16/9+81/21 16/27+27/21 16/9+27/63 80/9+27/21 16/45+27/21 16/63+27/21