Subtract 54/45 from 90/8
1st number: 11 2/8, 2nd number: 1 9/45
90/8 - 54/45 is 201/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
54/45 = 54 × 8/45 × 8 = 432/360 - Subtract the two like fractions:
4050/360 - 432/360 = 4050 - 432/360 = 3618/360 - After reducing the fraction, the answer is 201/20
- In mixed form: 101/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16-54/45 90/8-54/90 90/24-54/45 90/40-54/45 90/56-54/45