Subtract 45/90 from 4/8
4/8 - 45/90 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
4/8 = 4 × 45/8 × 45 = 180/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
45/90 = 45 × 4/90 × 4 = 180/360 - Subtract the two like fractions:
180/360 - 180/360 = 180 - 180/360 = 0/360 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/16-45/90 12/8-45/90 4/24-45/90 20/8-45/90 4/40-45/90 28/8-45/90 4/56-45/90