Subtract 18/10 from 9/80
1st number: 9/80, 2nd number: 1 8/10
9/80 - 18/10 is -27/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
18/10 = 18 × 8/10 × 8 = 144/80 - Subtract the two like fractions:
9/80 - 144/80 = 9 - 144/80 = -135/80 - After reducing the fraction, the answer is -27/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/80-18/10 9/80-36/10 9/80-18/20 27/80-18/10 9/80-54/10 9/80-18/30 45/80-18/10 9/80-90/10 9/80-18/50 63/80-18/10 9/80-18/70