Subtract 63/80 from 2/20
2/20 - 63/80 is -11/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
2/20 = 2 × 4/20 × 4 = 8/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
63/80 = 63 × 1/80 × 1 = 63/80 - Subtract the two like fractions:
8/80 - 63/80 = 8 - 63/80 = -55/80 - After reducing the fraction, the answer is -11/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20-63/80 2/40-63/80 6/20-63/80 2/60-63/80 10/20-63/80 14/20-63/80