Subtract 21/45 from 45/14
1st number: 3 3/14, 2nd number: 21/45
45/14 - 21/45 is 577/210.
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,
45/14 = 45 × 45/14 × 45 = 2025/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
21/45 = 21 × 14/45 × 14 = 294/630 - Subtract the two like fractions:
2025/630 - 294/630 = 2025 - 294/630 = 1731/630 - After reducing the fraction, the answer is 577/210
- In mixed form: 2157/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14-21/45 45/14-42/45 45/28-21/45 45/14-21/90 45/14-63/45 45/42-21/45 45/70-21/45 45/98-21/45