Subtract 75/30 from 12/15
1st number: 12/15, 2nd number: 2 15/30
12/15 - 75/30 is -17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
12/15 = 12 × 2/15 × 2 = 24/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
75/30 = 75 × 1/30 × 1 = 75/30 - Subtract the two like fractions:
24/30 - 75/30 = 24 - 75/30 = -51/30 - After reducing the fraction, the answer is -17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15-75/30 12/30-75/30 12/15-75/60 36/15-75/30 12/45-75/30 12/15-75/90 60/15-75/30 12/75-75/30 84/15-75/30