Subtract 5/8 from 45/75
45/75 - 5/8 is -1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 8 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
45/75 = 45 × 8/75 × 8 = 360/600 - Likewise, for the 2nd fraction, since 8 × 75 = 600,
5/8 = 5 × 75/8 × 75 = 375/600 - Subtract the two like fractions:
360/600 - 375/600 = 360 - 375/600 = -15/600 - After reducing the fraction, the answer is -1/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-5/8 45/75-10/8 45/75-5/16 45/75-15/8 45/75-5/24 45/75-25/8 45/75-5/40 45/75-35/8 45/75-5/56