Subtract 15/45 from 14/80
14/80 - 15/45 is -19/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 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 45 × 16 = 720,
15/45 = 15 × 16/45 × 16 = 240/720 - Subtract the two like fractions:
126/720 - 240/720 = 126 - 240/720 = -114/720 - After reducing the fraction, the answer is -19/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/80-15/45 14/80-30/45 14/80-15/90 42/80-15/45 70/80-15/45 14/80-75/45 98/80-15/45