Subtract 90/50 from 4/10
1st number: 4/10, 2nd number: 1 40/50
4/10 - 90/50 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
4/10 = 4 × 5/10 × 5 = 20/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
90/50 = 90 × 1/50 × 1 = 90/50 - Subtract the two like fractions:
20/50 - 90/50 = 20 - 90/50 = -70/50 - After reducing the fraction, the answer is -7/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-90/50 4/20-90/50 12/10-90/50 4/30-90/50 20/10-90/50 4/50-90/50 28/10-90/50 4/70-90/50