Subtract 18/20 from 8/48
8/48 - 18/20 is -11/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
8/48 = 8 × 5/48 × 5 = 40/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
18/20 = 18 × 12/20 × 12 = 216/240 - Subtract the two like fractions:
40/240 - 216/240 = 40 - 216/240 = -176/240 - After reducing the fraction, the answer is -11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/48-18/20 8/48-36/20 8/96-18/20 8/48-18/40 24/48-18/20 8/48-54/20 8/48-18/60 40/48-18/20 8/48-90/20 56/48-18/20