Subtract 45/12 from 6/4
1st number: 1 2/4, 2nd number: 3 9/12
6/4 - 45/12 is -9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
6/4 = 6 × 3/4 × 3 = 18/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
45/12 = 45 × 1/12 × 1 = 45/12 - Subtract the two like fractions:
18/12 - 45/12 = 18 - 45/12 = -27/12 - After reducing the fraction, the answer is -9/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/4-45/12 6/4-90/12 6/8-45/12 6/4-45/24 18/4-45/12 6/12-45/12 6/4-45/36 30/4-45/12 6/20-45/12 6/4-45/60 42/4-45/12 6/28-45/12 6/4-45/84