Answers

Subtract 81/80 from 5/49

1^st number: 5/49, 2^nd number: 1 1/80

5/49 - 81/80 is -3569/3920.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 80 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 49 × 80 = 3920,
   5/49 = 5 × 80/49 × 80 = 400/3920
3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
   81/80 = 81 × 49/80 × 49 = 3969/3920
4. Subtract the two like fractions:
   400/3920 - 3969/3920 = 400 - 3969/3920 = -3569/3920

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