Answers

Subtract 63/70 from 25/98

25/98 - 63/70 is -158/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 70 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   25/98 = 25 × 5/98 × 5 = 125/490
3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
   63/70 = 63 × 7/70 × 7 = 441/490
4. Subtract the two like fractions:
   125/490 - 441/490 = 125 - 441/490 = -316/490
5. After reducing the fraction, the answer is -158/245

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