Subtract 14/45 from 27/42
27/42 - 14/45 is 209/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
27/42 = 27 × 15/42 × 15 = 405/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
14/45 = 14 × 14/45 × 14 = 196/630 - Subtract the two like fractions:
405/630 - 196/630 = 405 - 196/630 = 209/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42-14/45 27/42-28/45 27/84-14/45 27/42-14/90 81/42-14/45 27/42-42/45 27/42-70/45 27/42-98/45