Subtract 54/15 from 9/4
1st number: 2 1/4, 2nd number: 3 9/15
9/4 - 54/15 is -27/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
54/15 = 54 × 4/15 × 4 = 216/60 - Subtract the two like fractions:
135/60 - 216/60 = 135 - 216/60 = -81/60 - After reducing the fraction, the answer is -27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4-54/15 9/8-54/15 9/4-54/30 27/4-54/15 9/12-54/15 9/4-54/45 45/4-54/15 9/20-54/15 9/4-54/75 63/4-54/15 9/28-54/15