Subtract 30/45 from 8/14
8/14 - 30/45 is -2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
8/14 = 8 × 45/14 × 45 = 360/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
30/45 = 30 × 14/45 × 14 = 420/630 - Subtract the two like fractions:
360/630 - 420/630 = 360 - 420/630 = -60/630 - After reducing the fraction, the answer is -2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14-30/45 8/14-60/45 8/28-30/45 8/14-30/90 24/14-30/45 8/14-90/45 8/42-30/45 40/14-30/45 8/70-30/45 56/14-30/45 8/98-30/45