Subtract 75/18 from 6/45
1st number: 6/45, 2nd number: 4 3/18
6/45 - 75/18 is -121/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 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 18 × 5 = 90,
75/18 = 75 × 5/18 × 5 = 375/90 - Subtract the two like fractions:
12/90 - 375/90 = 12 - 375/90 = -363/90 - After reducing the fraction, the answer is -121/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45-75/18 6/90-75/18 6/45-75/36 18/45-75/18 6/45-75/54 30/45-75/18 6/45-75/90 42/45-75/18