Subtract 30/75 from 20/8
1st number: 2 4/8, 2nd number: 30/75
20/8 - 30/75 is 21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 75 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 8 × 75 = 600,
20/8 = 20 × 75/8 × 75 = 1500/600 - Likewise, for the 2nd fraction, since 75 × 8 = 600,
30/75 = 30 × 8/75 × 8 = 240/600 - Subtract the two like fractions:
1500/600 - 240/600 = 1500 - 240/600 = 1260/600 - After reducing the fraction, the answer is 21/10
- In mixed form: 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8-30/75 20/8-60/75 20/16-30/75 60/8-30/75 20/8-90/75 20/24-30/75 20/40-30/75 20/56-30/75