Subtract 2/10 from 7/80
7/80 - 2/10 is -9/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
2/10 = 2 × 8/10 × 8 = 16/80 - Subtract the two like fractions:
7/80 - 16/80 = 7 - 16/80 = -9/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/80-2/10 7/80-4/10 7/80-2/20 21/80-2/10 7/80-6/10 7/80-2/30 35/80-2/10 7/80-2/50 49/80-2/10 7/80-14/10 7/80-2/70