Subtract 10/48 from 10/90
10/90 - 10/48 is -7/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
10/90 = 10 × 8/90 × 8 = 80/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
10/48 = 10 × 15/48 × 15 = 150/720 - Subtract the two like fractions:
80/720 - 150/720 = 80 - 150/720 = -70/720 - After reducing the fraction, the answer is -7/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90-10/48 10/90-20/48 10/90-10/96 30/90-10/48 10/90-30/48 50/90-10/48 10/90-50/48 70/90-10/48 10/90-70/48