Subtract 7/48 from 8/45
8/45 - 7/48 is 23/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
8/45 = 8 × 16/45 × 16 = 128/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
7/48 = 7 × 15/48 × 15 = 105/720 - Subtract the two like fractions:
128/720 - 105/720 = 128 - 105/720 = 23/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-7/48 8/45-14/48 8/90-7/48 8/45-7/96 24/45-7/48 8/45-21/48 40/45-7/48 8/45-35/48 56/45-7/48 8/45-49/48