Answers

Subtract 45/25 from 18/98

1^st number: 18/98, 2^nd number: 1 20/25

18/98 - 45/25 is -396/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 25 is 2450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2450
2. For the 1st fraction, since 98 × 25 = 2450,
   18/98 = 18 × 25/98 × 25 = 450/2450
3. Likewise, for the 2nd fraction, since 25 × 98 = 2450,
   45/25 = 45 × 98/25 × 98 = 4410/2450
4. Subtract the two like fractions:
   450/2450 - 4410/2450 = 450 - 4410/2450 = -3960/2450
5. After reducing the fraction, the answer is -396/245

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