Subtract 45/21 from 75/14
1st number: 5 5/14, 2nd number: 2 3/21
75/14 - 45/21 is 45/14.
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,
45/21 = 45 × 2/21 × 2 = 90/42 - Subtract the two like fractions:
225/42 - 90/42 = 225 - 90/42 = 135/42 - After reducing the fraction, the answer is 45/14
- In mixed form: 33/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/14-90/21 75/28-45/21 75/14-45/42 75/42-45/21 75/14-45/63 75/70-45/21 75/98-45/21