Subtract 75/30 from 45/8
1st number: 5 5/8, 2nd number: 2 15/30
45/8 - 75/30 is 25/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
45/8 = 45 × 15/8 × 15 = 675/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
75/30 = 75 × 4/30 × 4 = 300/120 - Subtract the two like fractions:
675/120 - 300/120 = 675 - 300/120 = 375/120 - After reducing the fraction, the answer is 25/8
- In mixed form: 31/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-75/30 45/16-75/30 45/8-75/60 45/24-75/30 45/8-75/90 45/40-75/30 45/56-75/30