Subtract 15/5 from 90/2
1st number: 45 0/2, 2nd number: 3 0/5
90/2 - 15/5 is 42/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
90/2 = 90 × 5/2 × 5 = 450/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
15/5 = 15 × 2/5 × 2 = 30/10 - Subtract the two like fractions:
450/10 - 30/10 = 450 - 30/10 = 420/10 - After reducing the fraction, the answer is 42/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-30/5 90/4-15/5 90/2-15/10 90/2-45/5 90/6-15/5 90/2-75/5 90/10-15/5 90/2-15/25 90/14-15/5 90/2-15/35