Add 16/2 and 21/80
1st number: 8 0/2, 2nd number: 21/80
16/2 + 21/80 is 661/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
16/2 = 16 × 40/2 × 40 = 640/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
21/80 = 21 × 1/80 × 1 = 21/80 - Add the two like fractions:
640/80 + 21/80 = 640 + 21/80 = 661/80 - So, 16/2 + 21/80 = 661/80
In mixed form: 821/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/2+21/80 16/2+42/80 16/4+21/80 48/2+21/80 16/2+63/80 16/6+21/80 80/2+21/80 16/10+21/80 16/14+21/80