Subtract 90/10 from 10/4
1st number: 2 2/4, 2nd number: 9 0/10
10/4 - 90/10 is -13/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
10/4 = 10 × 5/4 × 5 = 50/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
90/10 = 90 × 2/10 × 2 = 180/20 - Subtract the two like fractions:
50/20 - 180/20 = 50 - 180/20 = -130/20 - After reducing the fraction, the answer is -13/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/4-90/10 10/8-90/10 10/4-90/20 30/4-90/10 10/12-90/10 10/4-90/30 50/4-90/10 10/20-90/10 10/4-90/50 70/4-90/10 10/28-90/10 10/4-90/70