Subtract 75/8 from 5/90
1st number: 5/90, 2nd number: 9 3/8
5/90 - 75/8 is -671/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
5/90 = 5 × 4/90 × 4 = 20/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
75/8 = 75 × 45/8 × 45 = 3375/360 - Subtract the two like fractions:
20/360 - 3375/360 = 20 - 3375/360 = -3355/360 - After reducing the fraction, the answer is -671/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90-75/8 5/90-75/16 15/90-75/8 5/90-75/24 25/90-75/8 5/90-75/40 35/90-75/8 5/90-75/56