Subtract 10/20 from 20/48
20/48 - 10/20 is -1/12.
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,
20/48 = 20 × 5/48 × 5 = 100/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
10/20 = 10 × 12/20 × 12 = 120/240 - Subtract the two like fractions:
100/240 - 120/240 = 100 - 120/240 = -20/240 - After reducing the fraction, the answer is -1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/48-10/20 20/96-10/20 20/48-10/40 60/48-10/20 20/48-30/20 20/48-10/60 20/48-50/20 20/48-70/20