Subtract 75/45 from 40/14
1st number: 2 12/14, 2nd number: 1 30/45
40/14 - 75/45 is 25/21.
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,
40/14 = 40 × 45/14 × 45 = 1800/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630 - Subtract the two like fractions:
1800/630 - 1050/630 = 1800 - 1050/630 = 750/630 - After reducing the fraction, the answer is 25/21
- In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-75/45 40/28-75/45 40/14-75/90 40/42-75/45 40/70-75/45 40/98-75/45