Subtract 3/45 from 18/48
18/48 - 3/45 is 37/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
18/48 = 18 × 15/48 × 15 = 270/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
3/45 = 3 × 16/45 × 16 = 48/720 - Subtract the two like fractions:
270/720 - 48/720 = 270 - 48/720 = 222/720 - After reducing the fraction, the answer is 37/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/48-3/45 18/48-6/45 18/96-3/45 18/48-3/90 54/48-3/45 18/48-9/45 90/48-3/45 18/48-15/45 18/48-21/45