Subtract 18/21 from 75/14
1st number: 5 5/14, 2nd number: 18/21
75/14 - 18/21 is 9/2.
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,
75/14 = 75 × 3/14 × 3 = 225/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Subtract the two like fractions:
225/42 - 36/42 = 225 - 36/42 = 189/42 - After reducing the fraction, the answer is 9/2
- In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/14-36/21 75/28-18/21 75/14-18/42 75/14-54/21 75/42-18/21 75/14-18/63 75/14-90/21 75/70-18/21 75/98-18/21