Subtract 4/21 from 42/14
1st number: 3 0/14, 2nd number: 4/21
42/14 - 4/21 is 59/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
42/14 = 42 × 3/14 × 3 = 126/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Subtract the two like fractions:
126/42 - 8/42 = 126 - 8/42 = 118/42 - After reducing the fraction, the answer is 59/21
- In mixed form: 217/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-4/21 42/14-8/21 42/28-4/21 42/14-4/42 42/14-12/21 42/14-4/63 42/14-20/21 42/70-4/21 42/14-28/21 42/98-4/21