Subtract 45/10 from 9/7
1st number: 1 2/7, 2nd number: 4 5/10
9/7 - 45/10 is -45/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
9/7 = 9 × 10/7 × 10 = 90/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
45/10 = 45 × 7/10 × 7 = 315/70 - Subtract the two like fractions:
90/70 - 315/70 = 90 - 315/70 = -225/70 - After reducing the fraction, the answer is -45/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7-45/10 9/7-90/10 9/14-45/10 9/7-45/20 27/7-45/10 9/21-45/10 9/7-45/30 45/7-45/10 9/35-45/10 9/7-45/50 63/7-45/10 9/49-45/10 9/7-45/70