Subtract 2/16 from 21/4
1st number: 5 1/4, 2nd number: 2/16
21/4 - 2/16 is 41/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
21/4 = 21 × 4/4 × 4 = 84/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
2/16 = 2 × 1/16 × 1 = 2/16 - Subtract the two like fractions:
84/16 - 2/16 = 84 - 2/16 = 82/16 - After reducing the fraction, the answer is 41/8
- In mixed form: 51/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-2/16 21/4-4/16 21/8-2/16 21/4-2/32 63/4-2/16 21/4-6/16 21/12-2/16 21/4-2/48 21/4-10/16 21/20-2/16 21/4-2/80 21/4-14/16 21/28-2/16