Subtract 42/20 from 6/70
1st number: 6/70, 2nd number: 2 2/20
6/70 - 42/20 is -141/70.
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,
6/70 = 6 × 2/70 × 2 = 12/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Subtract the two like fractions:
12/140 - 294/140 = 12 - 294/140 = -282/140 - After reducing the fraction, the answer is -141/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70-42/20 6/70-84/20 6/70-42/40 18/70-42/20 6/70-42/60 30/70-42/20 42/70-42/20