Subtract 1/48 from 7/90
7/90 - 1/48 is 41/720.
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,
7/90 = 7 × 8/90 × 8 = 56/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
1/48 = 1 × 15/48 × 15 = 15/720 - Subtract the two like fractions:
56/720 - 15/720 = 56 - 15/720 = 41/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90-1/48 7/90-2/48 7/90-1/96 21/90-1/48 7/90-3/48 35/90-1/48 7/90-5/48 49/90-1/48 7/90-7/48