Subtract 1/20 from 4/48
4/48 - 1/20 is 1/30.
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,
4/48 = 4 × 5/48 × 5 = 20/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
1/20 = 1 × 12/20 × 12 = 12/240 - Subtract the two like fractions:
20/240 - 12/240 = 20 - 12/240 = 8/240 - After reducing the fraction, the answer is 1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/48-1/20 4/48-2/20 4/96-1/20 4/48-1/40 12/48-1/20 4/48-3/20 4/48-1/60 20/48-1/20 4/48-5/20 28/48-1/20 4/48-7/20