Subtract 20/10 from 40/35
1st number: 1 5/35, 2nd number: 2 0/10
40/35 - 20/10 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
40/35 = 40 × 2/35 × 2 = 80/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
20/10 = 20 × 7/10 × 7 = 140/70 - Subtract the two like fractions:
80/70 - 140/70 = 80 - 140/70 = -60/70 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35-20/10 40/35-40/10 40/70-20/10 40/35-60/10 40/35-20/30 40/35-20/50 40/35-20/70