Subtract 20/6 from 45/4
1st number: 11 1/4, 2nd number: 3 2/6
45/4 - 20/6 is 95/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 6 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
45/4 = 45 × 3/4 × 3 = 135/12 - Likewise, for the 2nd fraction, since 6 × 2 = 12,
20/6 = 20 × 2/6 × 2 = 40/12 - Subtract the two like fractions:
135/12 - 40/12 = 135 - 40/12 = 95/12 - In mixed form: 711/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-20/6 45/4-40/6 45/8-20/6 45/4-20/12 45/4-60/6 45/12-20/6 45/4-20/18 45/20-20/6 45/4-20/30 45/28-20/6 45/4-20/42