Answers

Subtract 18/98 from 80/72

1^st number: 1 8/72, 2^nd number: 18/98

80/72 - 18/98 is 409/441.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 98 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 72 × 49 = 3528,
   80/72 = 80 × 49/72 × 49 = 3920/3528
3. Likewise, for the 2nd fraction, since 98 × 36 = 3528,
   18/98 = 18 × 36/98 × 36 = 648/3528
4. Subtract the two like fractions:
   3920/3528 - 648/3528 = 3920 - 648/3528 = 3272/3528
5. After reducing the fraction, the answer is 409/441

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