Subtract 1/20 from 75/15
1st number: 5 0/15, 2nd number: 1/20
75/15 - 1/20 is 99/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
75/15 = 75 × 4/15 × 4 = 300/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
1/20 = 1 × 3/20 × 3 = 3/60 - Subtract the two like fractions:
300/60 - 3/60 = 300 - 3/60 = 297/60 - After reducing the fraction, the answer is 99/20
- In mixed form: 419/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/15-2/20 75/30-1/20 75/15-1/40 75/15-3/20 75/45-1/20 75/15-1/60 75/15-5/20 75/15-7/20