Subtract 45/30 from 4/12
1st number: 4/12, 2nd number: 1 15/30
4/12 - 45/30 is -7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
4/12 = 4 × 5/12 × 5 = 20/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 90/60 - Subtract the two like fractions:
20/60 - 90/60 = 20 - 90/60 = -70/60 - After reducing the fraction, the answer is -7/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12-45/30 4/12-90/30 4/24-45/30 4/12-45/60 4/36-45/30 4/12-45/90 20/12-45/30 4/60-45/30 28/12-45/30 4/84-45/30