Subtract 45/54 from 12/5
1st number: 2 2/5, 2nd number: 45/54
12/5 - 45/54 is 47/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
12/5 = 12 × 54/5 × 54 = 648/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Subtract the two like fractions:
648/270 - 225/270 = 648 - 225/270 = 423/270 - After reducing the fraction, the answer is 47/30
- In mixed form: 117/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-45/54 12/5-90/54 12/10-45/54 36/5-45/54 12/15-45/54 60/5-45/54 12/25-45/54 84/5-45/54 12/35-45/54