Subtract 45/72 from 12/6
1st number: 2 0/6, 2nd number: 45/72
12/6 - 45/72 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
12/6 = 12 × 12/6 × 12 = 144/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
45/72 = 45 × 1/72 × 1 = 45/72 - Subtract the two like fractions:
144/72 - 45/72 = 144 - 45/72 = 99/72 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-45/72 12/6-90/72 36/6-45/72 12/18-45/72 60/6-45/72 12/30-45/72 84/6-45/72 12/42-45/72