Subtract 10/45 from 8/7
1st number: 1 1/7, 2nd number: 10/45
8/7 - 10/45 is 58/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
8/7 = 8 × 45/7 × 45 = 360/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
10/45 = 10 × 7/45 × 7 = 70/315 - Subtract the two like fractions:
360/315 - 70/315 = 360 - 70/315 = 290/315 - After reducing the fraction, the answer is 58/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-10/45 8/7-20/45 8/14-10/45 8/7-10/90 24/7-10/45 8/7-30/45 8/21-10/45 40/7-10/45 8/7-50/45 8/35-10/45 56/7-10/45 8/7-70/45 8/49-10/45