Subtract 8/4 from 4/45
1st number: 4/45, 2nd number: 2 0/4
4/45 - 8/4 is -86/45.
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,
4/45 = 4 × 4/45 × 4 = 16/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
8/4 = 8 × 45/4 × 45 = 360/180 - Subtract the two like fractions:
16/180 - 360/180 = 16 - 360/180 = -344/180 - After reducing the fraction, the answer is -86/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-8/4 4/45-16/4 4/90-8/4 12/45-8/4 4/45-24/4 4/45-8/12 20/45-8/4 4/45-40/4 4/45-8/20 28/45-8/4 4/45-56/4 4/45-8/28