Subtract 6/70 from 40/20
1st number: 2 0/20, 2nd number: 6/70
40/20 - 6/70 is 67/35.
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,
40/20 = 40 × 7/20 × 7 = 280/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
6/70 = 6 × 2/70 × 2 = 12/140 - Subtract the two like fractions:
280/140 - 12/140 = 280 - 12/140 = 268/140 - After reducing the fraction, the answer is 67/35
- In mixed form: 132/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-6/70 40/20-12/70 40/20-18/70 40/60-6/70 40/20-30/70 40/20-42/70