Subtract 2/20 from 2/70
2/70 - 2/20 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
2/70 = 2 × 2/70 × 2 = 4/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140 - Subtract the two like fractions:
4/140 - 14/140 = 4 - 14/140 = -10/140 - After reducing the fraction, the answer is -1/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70-2/20 2/70-4/20 2/70-2/40 6/70-2/20 2/70-6/20 2/70-2/60 10/70-2/20 2/70-10/20 14/70-2/20 2/70-14/20