Add 9/3 and 16/21
1st number: 3 0/3, 2nd number: 16/21
9/3 + 16/21 is 79/21.
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,
16/21 = 16 × 1/21 × 1 = 16/21 - Add the two like fractions:
63/21 + 16/21 = 63 + 16/21 = 79/21 - So, 9/3 + 16/21 = 79/21
In mixed form: 316/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3+16/21 9/3+32/21 9/6+16/21 9/3+16/42 27/3+16/21 9/3+48/21 9/3+16/63 45/3+16/21 9/3+80/21 9/15+16/21 63/3+16/21 9/21+16/21