Subtract 8/7 from 63/70
1st number: 63/70, 2nd number: 1 1/7
63/70 - 8/7 is -17/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
63/70 = 63 × 1/70 × 1 = 63/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
8/7 = 8 × 10/7 × 10 = 80/70 - Subtract the two like fractions:
63/70 - 80/70 = 63 - 80/70 = -17/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-16/7 63/70-8/14 63/70-24/7 63/70-8/21 63/70-40/7 63/70-8/35 63/70-56/7 63/70-8/49