Add 21/16 and 42/50
1st number: 1 5/16, 2nd number: 42/50
21/16 + 42/50 is 861/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
21/16 = 21 × 25/16 × 25 = 525/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
42/50 = 42 × 8/50 × 8 = 336/400 - Add the two like fractions:
525/400 + 336/400 = 525 + 336/400 = 861/400 - So, 21/16 + 42/50 = 861/400
In mixed form: 261/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16+42/50 21/16+84/50 21/32+42/50 63/16+42/50 21/48+42/50 21/80+42/50