Subtract 10/45 from 54/12
1st number: 4 6/12, 2nd number: 10/45
54/12 - 10/45 is 77/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
54/12 = 54 × 15/12 × 15 = 810/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
10/45 = 10 × 4/45 × 4 = 40/180 - Subtract the two like fractions:
810/180 - 40/180 = 810 - 40/180 = 770/180 - After reducing the fraction, the answer is 77/18
- In mixed form: 45/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-20/45 54/24-10/45 54/12-10/90 54/12-30/45 54/36-10/45 54/12-50/45 54/60-10/45 54/12-70/45 54/84-10/45