Subtract 30/60 from 45/12
1st number: 3 9/12, 2nd number: 30/60
45/12 - 30/60 is 13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60 - Subtract the two like fractions:
225/60 - 30/60 = 225 - 30/60 = 195/60 - After reducing the fraction, the answer is 13/4
- In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-30/60 45/24-30/60 45/12-90/60 45/36-30/60 45/60-30/60 45/84-30/60