Subtract 9/90 from 6/45
6/45 - 9/90 is 1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
6/45 = 6 × 2/45 × 2 = 12/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Subtract the two like fractions:
12/90 - 9/90 = 12 - 9/90 = 3/90 - After reducing the fraction, the answer is 1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45-9/90 6/45-18/90 6/90-9/90 18/45-9/90 6/45-27/90 30/45-9/90 6/45-45/90 42/45-9/90 6/45-63/90