Subtract 45/30 from 12/75
1st number: 12/75, 2nd number: 1 15/30
12/75 - 45/30 is -67/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
12/75 = 12 × 2/75 × 2 = 24/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
45/30 = 45 × 5/30 × 5 = 225/150 - Subtract the two like fractions:
24/150 - 225/150 = 24 - 225/150 = -201/150 - After reducing the fraction, the answer is -67/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75-45/30 12/75-90/30 12/75-45/60 36/75-45/30 12/75-45/90 60/75-45/30 84/75-45/30