Subtract 8/49 from 40/20
1st number: 2 0/20, 2nd number: 8/49
40/20 - 8/49 is 90/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
40/20 = 40 × 49/20 × 49 = 1960/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
8/49 = 8 × 20/49 × 20 = 160/980 - Subtract the two like fractions:
1960/980 - 160/980 = 1960 - 160/980 = 1800/980 - After reducing the fraction, the answer is 90/49
- In mixed form: 141/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-8/49 40/20-16/49 40/20-8/98 40/20-24/49 40/60-8/49 40/20-40/49 40/20-56/49