Answers

Subtract 25/20 from 70/98

1^st number: 70/98, 2^nd number: 1 5/20

70/98 - 25/20 is -15/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 98 × 10 = 980,
   70/98 = 70 × 10/98 × 10 = 700/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   25/20 = 25 × 49/20 × 49 = 1225/980
4. Subtract the two like fractions:
   700/980 - 1225/980 = 700 - 1225/980 = -525/980
5. After reducing the fraction, the answer is -15/28

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