Subtract 50/21 from 9/16
1st number: 9/16, 2nd number: 2 8/21
9/16 - 50/21 is -611/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
9/16 = 9 × 21/16 × 21 = 189/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
50/21 = 50 × 16/21 × 16 = 800/336 - Subtract the two like fractions:
189/336 - 800/336 = 189 - 800/336 = -611/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/16-50/21 9/32-50/21 9/16-50/42 27/16-50/21 9/48-50/21 9/16-50/63 45/16-50/21 9/80-50/21 63/16-50/21