Subtract 5/4 from 90/10
1st number: 9 0/10, 2nd number: 1 1/4
90/10 - 5/4 is 31/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
90/10 = 90 × 2/10 × 2 = 180/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
5/4 = 5 × 5/4 × 5 = 25/20 - Subtract the two like fractions:
180/20 - 25/20 = 180 - 25/20 = 155/20 - After reducing the fraction, the answer is 31/4
- In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-10/4 90/20-5/4 90/10-5/8 90/10-15/4 90/30-5/4 90/10-5/12 90/10-25/4 90/50-5/4 90/10-5/20 90/10-35/4 90/70-5/4 90/10-5/28