Subtract 80/54 from 45/90
1st number: 45/90, 2nd number: 1 26/54
45/90 - 80/54 is -53/54.
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,
45/90 = 45 × 3/90 × 3 = 135/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
80/54 = 80 × 5/54 × 5 = 400/270 - Subtract the two like fractions:
135/270 - 400/270 = 135 - 400/270 = -265/270 - After reducing the fraction, the answer is -53/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: