Subtract 24/9 from 90/45
1st number: 2 0/45, 2nd number: 2 6/9
90/45 - 24/9 is -2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
90/45 = 90 × 1/45 × 1 = 90/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
24/9 = 24 × 5/9 × 5 = 120/45 - Subtract the two like fractions:
90/45 - 120/45 = 90 - 120/45 = -30/45 - After reducing the fraction, the answer is -2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45-48/9 90/45-24/18 90/45-72/9 90/45-24/27 90/45-24/45 90/45-24/63