Subtract 20/70 from 6/20
6/20 - 20/70 is 1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
20/70 = 20 × 2/70 × 2 = 40/140 - Subtract the two like fractions:
42/140 - 40/140 = 42 - 40/140 = 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: 12/20-20/70 6/20-40/70 6/40-20/70 18/20-20/70 6/20-60/70 6/60-20/70 30/20-20/70 42/20-20/70