Subtract 45/90 from 4/14
4/14 - 45/90 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
4/14 = 4 × 45/14 × 45 = 180/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
45/90 = 45 × 7/90 × 7 = 315/630 - Subtract the two like fractions:
180/630 - 315/630 = 180 - 315/630 = -135/630 - After reducing the fraction, the answer is -3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/14-45/90 4/28-45/90 12/14-45/90 4/42-45/90 20/14-45/90 4/70-45/90 28/14-45/90 4/98-45/90