Subtract 3/80 from 14/90
14/90 - 3/80 is 17/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
14/90 = 14 × 8/90 × 8 = 112/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Subtract the two like fractions:
112/720 - 27/720 = 112 - 27/720 = 85/720 - After reducing the fraction, the answer is 17/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90-3/80 14/90-6/80 42/90-3/80 14/90-9/80 70/90-3/80 14/90-15/80 98/90-3/80 14/90-21/80