Subtract 21/28 from 42/3
1st number: 14 0/3, 2nd number: 21/28
42/3 - 21/28 is 53/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
42/3 = 42 × 28/3 × 28 = 1176/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84 - Subtract the two like fractions:
1176/84 - 63/84 = 1176 - 63/84 = 1113/84 - After reducing the fraction, the answer is 53/4
- In mixed form: 131/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3-21/28 42/3-42/28 42/6-21/28 42/3-21/56 42/3-63/28 42/9-21/28 42/3-21/84 42/15-21/28 42/21-21/28