Answers

Subtract 42/35 from 20/98

1^st number: 20/98, 2^nd number: 1 7/35

20/98 - 42/35 is -244/245.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 98 × 5 = 490,
   20/98 = 20 × 5/98 × 5 = 100/490
3. Likewise, for the 2nd fraction, since 35 × 14 = 490,
   42/35 = 42 × 14/35 × 14 = 588/490
4. Subtract the two like fractions:
   100/490 - 588/490 = 100 - 588/490 = -488/490
5. After reducing the fraction, the answer is -244/245

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