Subtract 12/45 from 54/10
1st number: 5 4/10, 2nd number: 12/45
54/10 - 12/45 is 77/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
54/10 = 54 × 9/10 × 9 = 486/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Subtract the two like fractions:
486/90 - 24/90 = 486 - 24/90 = 462/90 - After reducing the fraction, the answer is 77/15
- In mixed form: 52/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-24/45 54/20-12/45 54/10-12/90 54/10-36/45 54/30-12/45 54/10-60/45 54/50-12/45 54/10-84/45 54/70-12/45