Subtract 20/48 from 8/20
8/20 - 20/48 is -1/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
8/20 = 8 × 12/20 × 12 = 96/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
20/48 = 20 × 5/48 × 5 = 100/240 - Subtract the two like fractions:
96/240 - 100/240 = 96 - 100/240 = -4/240 - After reducing the fraction, the answer is -1/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-20/48 8/20-40/48 8/40-20/48 8/20-20/96 24/20-20/48 8/20-60/48 8/60-20/48 40/20-20/48 56/20-20/48