Subtract 18/35 from 42/98
42/98 - 18/35 is -3/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 35 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
42/98 = 42 × 5/98 × 5 = 210/490 - Likewise, for the 2nd fraction, since 35 × 14 = 490,
18/35 = 18 × 14/35 × 14 = 252/490 - Subtract the two like fractions:
210/490 - 252/490 = 210 - 252/490 = -42/490 - After reducing the fraction, the answer is -3/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98-18/35 42/98-36/35 42/98-18/70 42/98-54/35 42/98-90/35