Subtract 42/6 from 45/4
1st number: 11 1/4, 2nd number: 7 0/6
45/4 - 42/6 is 17/4.
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,
42/6 = 42 × 2/6 × 2 = 84/12 - Subtract the two like fractions:
135/12 - 84/12 = 135 - 84/12 = 51/12 - After reducing the fraction, the answer is 17/4
- In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-42/6 45/4-84/6 45/8-42/6 45/4-42/12 45/12-42/6 45/4-42/18 45/20-42/6 45/4-42/30 45/28-42/6