Answers

Subtract 25/9 from 9/80

1^st number: 9/80, 2^nd number: 2 7/9

9/80 - 25/9 is -1919/720.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 9 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   9/80 = 9 × 9/80 × 9 = 81/720
3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
   25/9 = 25 × 80/9 × 80 = 2000/720
4. Subtract the two like fractions:
   81/720 - 2000/720 = 81 - 2000/720 = -1919/720

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