Subtract 18/20 from 98/80
1st number: 1 18/80, 2nd number: 18/20
98/80 - 18/20 is 13/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
98/80 = 98 × 1/80 × 1 = 98/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
18/20 = 18 × 4/20 × 4 = 72/80 - Subtract the two like fractions:
98/80 - 72/80 = 98 - 72/80 = 26/80 - After reducing the fraction, the answer is 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/80-36/20 98/80-18/40 98/80-54/20 98/80-18/60 98/80-90/20