Subtract 54/12 from 50/45
1st number: 1 5/45, 2nd number: 4 6/12
50/45 - 54/12 is -61/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
50/45 = 50 × 4/45 × 4 = 200/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
54/12 = 54 × 15/12 × 15 = 810/180 - Subtract the two like fractions:
200/180 - 810/180 = 200 - 810/180 = -610/180 - After reducing the fraction, the answer is -61/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90-54/12 50/45-54/24 50/45-54/36 50/45-54/60 50/45-54/84