Subtract 1/90 from 45/9
1st number: 5 0/9, 2nd number: 1/90
45/9 - 1/90 is 449/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
45/9 = 45 × 10/9 × 10 = 450/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Subtract the two like fractions:
450/90 - 1/90 = 450 - 1/90 = 449/90 - In mixed form: 489/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9-1/90 45/9-2/90 45/18-1/90 45/9-3/90 45/27-1/90 45/9-5/90 45/9-7/90 45/63-1/90