Add 3/16 and 21/25
3/16 + 21/25 is 411/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
3/16 = 3 × 25/16 × 25 = 75/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
21/25 = 21 × 16/25 × 16 = 336/400 - Add the two like fractions:
75/400 + 336/400 = 75 + 336/400 = 411/400 - So, 3/16 + 21/25 = 411/400
In mixed form: 111/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16+21/25 3/16+42/25 3/32+21/25 3/16+21/50 9/16+21/25 3/16+63/25 3/48+21/25 3/16+21/75 15/16+21/25 3/80+21/25 21/16+21/25