Subtract 6/4 from 8/45
1st number: 8/45, 2nd number: 1 2/4
8/45 - 6/4 is -119/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
6/4 = 6 × 45/4 × 45 = 270/180 - Subtract the two like fractions:
32/180 - 270/180 = 32 - 270/180 = -238/180 - After reducing the fraction, the answer is -119/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-6/4 8/45-12/4 8/90-6/4 8/45-6/8 24/45-6/4 8/45-18/4 8/45-6/12 40/45-6/4 8/45-30/4 8/45-6/20 56/45-6/4 8/45-42/4 8/45-6/28