Subtract 45/7 from 10/5
1st number: 2 0/5, 2nd number: 6 3/7
10/5 - 45/7 is -31/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
10/5 = 10 × 7/5 × 7 = 70/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
45/7 = 45 × 5/7 × 5 = 225/35 - Subtract the two like fractions:
70/35 - 225/35 = 70 - 225/35 = -155/35 - After reducing the fraction, the answer is -31/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5-45/7 10/5-90/7 10/5-45/14 30/5-45/7 10/15-45/7 10/5-45/21 50/5-45/7 10/25-45/7 10/5-45/35 70/5-45/7 10/35-45/7 10/5-45/49