Subtract 20/30 from 75/25
1st number: 3 0/25, 2nd number: 20/30
75/25 - 20/30 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
75/25 = 75 × 6/25 × 6 = 450/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
20/30 = 20 × 5/30 × 5 = 100/150 - Subtract the two like fractions:
450/150 - 100/150 = 450 - 100/150 = 350/150 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/25-40/30 75/50-20/30 75/25-20/60 75/25-60/30 75/25-20/90