Subtract 40/14 from 27/45
1st number: 27/45, 2nd number: 2 12/14
27/45 - 40/14 is -79/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
27/45 = 27 × 14/45 × 14 = 378/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
40/14 = 40 × 45/14 × 45 = 1800/630 - Subtract the two like fractions:
378/630 - 1800/630 = 378 - 1800/630 = -1422/630 - After reducing the fraction, the answer is -79/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45-40/14 27/45-80/14 27/90-40/14 27/45-40/28 81/45-40/14 27/45-40/42 27/45-40/70 27/45-40/98