Subtract 90/54 from 6/90
1st number: 6/90, 2nd number: 1 36/54
6/90 - 90/54 is -8/5.
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,
6/90 = 6 × 3/90 × 3 = 18/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Subtract the two like fractions:
18/270 - 450/270 = 18 - 450/270 = -432/270 - After reducing the fraction, the answer is -8/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/90-90/54 18/90-90/54 30/90-90/54 42/90-90/54