Add 28/2 and 16/21
1st number: 14 0/2, 2nd number: 16/21
28/2 + 16/21 is 310/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
28/2 = 28 × 21/2 × 21 = 588/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
16/21 = 16 × 2/21 × 2 = 32/42 - Add the two like fractions:
588/42 + 32/42 = 588 + 32/42 = 620/42 - 620/42 simplified gives 310/21
- So, 28/2 + 16/21 = 310/21
In mixed form: 1416/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2+16/21 28/2+32/21 28/4+16/21 28/2+16/42 84/2+16/21 28/2+48/21 28/6+16/21 28/2+16/63 28/2+80/21 28/10+16/21 28/14+16/21