Subtract 20/10 from 1/70
1st number: 1/70, 2nd number: 2 0/10
1/70 - 20/10 is -139/70.
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,
1/70 = 1 × 1/70 × 1 = 1/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
20/10 = 20 × 7/10 × 7 = 140/70 - Subtract the two like fractions:
1/70 - 140/70 = 1 - 140/70 = -139/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-20/10 1/70-40/10 3/70-20/10 1/70-60/10 1/70-20/30 5/70-20/10 1/70-20/50 7/70-20/10 1/70-20/70