Subtract 8/42 from 20/98
20/98 - 8/42 is 2/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 42 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
20/98 = 20 × 3/98 × 3 = 60/294 - Likewise, for the 2nd fraction, since 42 × 7 = 294,
8/42 = 8 × 7/42 × 7 = 56/294 - Subtract the two like fractions:
60/294 - 56/294 = 60 - 56/294 = 4/294 - After reducing the fraction, the answer is 2/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/98-8/42 20/98-16/42 20/98-8/84 60/98-8/42 20/98-24/42 20/98-40/42 20/98-56/42