Add 16/3 and 21/40
1st number: 5 1/3, 2nd number: 21/40
16/3 + 21/40 is 703/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
16/3 = 16 × 40/3 × 40 = 640/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
640/120 + 63/120 = 640 + 63/120 = 703/120 - So, 16/3 + 21/40 = 703/120
In mixed form: 5103/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/3+21/40 16/3+42/40 16/6+21/40 16/3+21/80 48/3+21/40 16/3+63/40 16/9+21/40 80/3+21/40 16/15+21/40 16/21+21/40