Subtract 54/4 from 20/15
1st number: 1 5/15, 2nd number: 13 2/4
20/15 - 54/4 is -73/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
20/15 = 20 × 4/15 × 4 = 80/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
54/4 = 54 × 15/4 × 15 = 810/60 - Subtract the two like fractions:
80/60 - 810/60 = 80 - 810/60 = -730/60 - After reducing the fraction, the answer is -73/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-54/4 20/30-54/4 20/15-54/8 60/15-54/4 20/45-54/4 20/15-54/12 20/75-54/4 20/15-54/20 20/15-54/28