Subtract 45/7 from 10/45
1st number: 10/45, 2nd number: 6 3/7
10/45 - 45/7 is -391/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
10/45 = 10 × 7/45 × 7 = 70/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
45/7 = 45 × 45/7 × 45 = 2025/315 - Subtract the two like fractions:
70/315 - 2025/315 = 70 - 2025/315 = -1955/315 - After reducing the fraction, the answer is -391/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45-45/7 10/45-90/7 10/90-45/7 10/45-45/14 30/45-45/7 10/45-45/21 50/45-45/7 10/45-45/35 70/45-45/7 10/45-45/49