Subtract 6/20 from 4/70
4/70 - 6/20 is -17/70.
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,
4/70 = 4 × 2/70 × 2 = 8/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Subtract the two like fractions:
8/140 - 42/140 = 8 - 42/140 = -34/140 - After reducing the fraction, the answer is -17/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70-6/20 4/70-12/20 4/70-6/40 12/70-6/20 4/70-18/20 4/70-6/60 20/70-6/20 4/70-30/20 28/70-6/20 4/70-42/20