Subtract 1/48 from 28/45
28/45 - 1/48 is 433/720.
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,
28/45 = 28 × 16/45 × 16 = 448/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
1/48 = 1 × 15/48 × 15 = 15/720 - Subtract the two like fractions:
448/720 - 15/720 = 448 - 15/720 = 433/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-1/48 28/45-2/48 28/90-1/48 28/45-1/96 84/45-1/48 28/45-3/48 28/45-5/48 28/45-7/48