Subtract 90/25 from 5/4
1st number: 1 1/4, 2nd number: 3 15/25
5/4 - 90/25 is -47/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
5/4 = 5 × 25/4 × 25 = 125/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
90/25 = 90 × 4/25 × 4 = 360/100 - Subtract the two like fractions:
125/100 - 360/100 = 125 - 360/100 = -235/100 - After reducing the fraction, the answer is -47/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/4-90/25 5/8-90/25 5/4-90/50 15/4-90/25 5/12-90/25 5/4-90/75 25/4-90/25 5/20-90/25 35/4-90/25 5/28-90/25