Subtract 40/8 from 1/20
1st number: 1/20, 2nd number: 5 0/8
1/20 - 40/8 is -99/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
1/20 = 1 × 2/20 × 2 = 2/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
40/8 = 40 × 5/8 × 5 = 200/40 - Subtract the two like fractions:
2/40 - 200/40 = 2 - 200/40 = -198/40 - After reducing the fraction, the answer is -99/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-40/8 1/20-80/8 1/40-40/8 1/20-40/16 3/20-40/8 1/60-40/8 1/20-40/24 5/20-40/8 7/20-40/8 1/20-40/56