Subtract 9/10 from 8/70
8/70 - 9/10 is -11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
8/70 = 8 × 1/70 × 1 = 8/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
9/10 = 9 × 7/10 × 7 = 63/70 - Subtract the two like fractions:
8/70 - 63/70 = 8 - 63/70 = -55/70 - After reducing the fraction, the answer is -11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70-9/10 8/70-18/10 8/70-9/20 24/70-9/10 8/70-27/10 8/70-9/30 40/70-9/10 8/70-45/10 8/70-9/50 56/70-9/10 8/70-63/10 8/70-9/70