Subtract 30/40 from 14/80
14/80 - 30/40 is -23/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
14/80 = 14 × 1/80 × 1 = 14/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
30/40 = 30 × 2/40 × 2 = 60/80 - Subtract the two like fractions:
14/80 - 60/80 = 14 - 60/80 = -46/80 - After reducing the fraction, the answer is -23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/80-30/40 14/80-60/40 14/80-30/80 42/80-30/40 14/80-90/40 70/80-30/40 98/80-30/40