Subtract 2/20 from 8/70
8/70 - 2/20 is 1/70.
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,
8/70 = 8 × 2/70 × 2 = 16/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140 - Subtract the two like fractions:
16/140 - 14/140 = 16 - 14/140 = 2/140 - After reducing the fraction, the answer is 1/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70-2/20 8/70-4/20 8/70-2/40 24/70-2/20 8/70-6/20 8/70-2/60 40/70-2/20 8/70-10/20 56/70-2/20 8/70-14/20