Subtract 3/8 from 45/25
1st number: 1 20/25, 2nd number: 3/8
45/25 - 3/8 is 57/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
45/25 = 45 × 8/25 × 8 = 360/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
3/8 = 3 × 25/8 × 25 = 75/200 - Subtract the two like fractions:
360/200 - 75/200 = 360 - 75/200 = 285/200 - After reducing the fraction, the answer is 57/40
- In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25-3/8 45/25-6/8 45/50-3/8 45/25-3/16 45/25-9/8 45/75-3/8 45/25-3/24 45/25-15/8 45/25-3/40 45/25-21/8 45/25-3/56