Subtract 24/54 from 4/90
4/90 - 24/54 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
4/90 = 4 × 3/90 × 3 = 12/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
24/54 = 24 × 5/54 × 5 = 120/270 - Subtract the two like fractions:
12/270 - 120/270 = 12 - 120/270 = -108/270 - After reducing the fraction, the answer is -2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90-24/54 4/90-48/54 12/90-24/54 4/90-72/54 20/90-24/54 28/90-24/54