Subtract 80/7 from 18/10
1st number: 1 8/10, 2nd number: 11 3/7
18/10 - 80/7 is -337/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
18/10 = 18 × 7/10 × 7 = 126/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
80/7 = 80 × 10/7 × 10 = 800/70 - Subtract the two like fractions:
126/70 - 800/70 = 126 - 800/70 = -674/70 - After reducing the fraction, the answer is -337/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10-80/7 18/20-80/7 18/10-80/14 54/10-80/7 18/30-80/7 18/10-80/21 90/10-80/7 18/50-80/7 18/10-80/35 18/70-80/7 18/10-80/49