Subtract 1/16 from 90/21
1st number: 4 6/21, 2nd number: 1/16
90/21 - 1/16 is 473/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
1/16 = 1 × 21/16 × 21 = 21/336 - Subtract the two like fractions:
1440/336 - 21/336 = 1440 - 21/336 = 1419/336 - After reducing the fraction, the answer is 473/112
- In mixed form: 425/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21-2/16 90/42-1/16 90/21-1/32 90/21-3/16 90/63-1/16 90/21-1/48 90/21-5/16 90/21-1/80 90/21-7/16