Subtract 42/5 from 14/18
1st number: 14/18, 2nd number: 8 2/5
14/18 - 42/5 is -343/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
14/18 = 14 × 5/18 × 5 = 70/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
42/5 = 42 × 18/5 × 18 = 756/90 - Subtract the two like fractions:
70/90 - 756/90 = 70 - 756/90 = -686/90 - After reducing the fraction, the answer is -343/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18-42/5 14/18-84/5 14/36-42/5 14/18-42/10 42/18-42/5 14/54-42/5 14/18-42/15 70/18-42/5 14/90-42/5 14/18-42/25 98/18-42/5 14/18-42/35