Subtract 90/20 from 54/24
1st number: 2 6/24, 2nd number: 4 10/20
54/24 - 90/20 is -9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
54/24 = 54 × 5/24 × 5 = 270/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
90/20 = 90 × 6/20 × 6 = 540/120 - Subtract the two like fractions:
270/120 - 540/120 = 270 - 540/120 = -270/120 - After reducing the fraction, the answer is -9/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/48-90/20 54/24-90/40 54/72-90/20 54/24-90/60