Subtract 90/27 from 45/8
1st number: 5 5/8, 2nd number: 3 9/27
45/8 - 90/27 is 55/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
45/8 = 45 × 27/8 × 27 = 1215/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
90/27 = 90 × 8/27 × 8 = 720/216 - Subtract the two like fractions:
1215/216 - 720/216 = 1215 - 720/216 = 495/216 - After reducing the fraction, the answer is 55/24
- In mixed form: 27/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-90/27 45/16-90/27 45/8-90/54 45/24-90/27 45/8-90/81 45/40-90/27 45/56-90/27