Subtract 50/20 from 45/4
1st number: 11 1/4, 2nd number: 2 10/20
45/4 - 50/20 is 35/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
50/20 = 50 × 1/20 × 1 = 50/20 - Subtract the two like fractions:
225/20 - 50/20 = 225 - 50/20 = 175/20 - After reducing the fraction, the answer is 35/4
- In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-50/20 45/8-50/20 45/4-50/40 45/12-50/20 45/4-50/60 45/20-50/20 45/28-50/20