Subtract 40/12 from 75/30
1st number: 2 15/30, 2nd number: 3 4/12
75/30 - 40/12 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Subtract the two like fractions:
150/60 - 200/60 = 150 - 200/60 = -50/60 - After reducing the fraction, the answer is -5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30-80/12 75/60-40/12 75/30-40/24 75/90-40/12 75/30-40/36 75/30-40/60 75/30-40/84