Subtract 30/8 from 40/75
1st number: 40/75, 2nd number: 3 6/8
40/75 - 30/8 is -193/60.
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,
40/75 = 40 × 8/75 × 8 = 320/600 - Likewise, for the 2nd fraction, since 8 × 75 = 600,
30/8 = 30 × 75/8 × 75 = 2250/600 - Subtract the two like fractions:
320/600 - 2250/600 = 320 - 2250/600 = -1930/600 - After reducing the fraction, the answer is -193/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75-30/8 40/75-60/8 40/75-30/16 40/75-90/8 40/75-30/24 40/75-30/40 40/75-30/56