Subtract 40/98 from 20/10
1st number: 2 0/10, 2nd number: 40/98
20/10 - 40/98 is 78/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
20/10 = 20 × 49/10 × 49 = 980/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
40/98 = 40 × 5/98 × 5 = 200/490 - Subtract the two like fractions:
980/490 - 200/490 = 980 - 200/490 = 780/490 - After reducing the fraction, the answer is 78/49
- In mixed form: 129/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10-40/98 20/10-80/98 60/10-40/98 20/30-40/98 20/50-40/98 20/70-40/98