Subtract 7/50 from 21/16
1st number: 1 5/16, 2nd number: 7/50
21/16 - 7/50 is 469/400.
Steps for subtracting 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,
7/50 = 7 × 8/50 × 8 = 56/400 - Subtract the two like fractions:
525/400 - 56/400 = 525 - 56/400 = 469/400 - In mixed form: 169/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16-7/50 21/16-14/50 21/32-7/50 63/16-7/50 21/16-21/50 21/48-7/50 21/16-35/50 21/80-7/50 21/16-49/50