Subtract 12/90 from 14/80
14/80 - 12/90 is 1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
14/80 = 14 × 9/80 × 9 = 126/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
12/90 = 12 × 8/90 × 8 = 96/720 - Subtract the two like fractions:
126/720 - 96/720 = 126 - 96/720 = 30/720 - After reducing the fraction, the answer is 1/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/80-12/90 14/80-24/90 42/80-12/90 14/80-36/90 70/80-12/90 14/80-60/90 98/80-12/90 14/80-84/90