Answers

Subtract 64/9 from 7/80

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

7/80 - 64/9 is -5057/720.

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,
   7/80 = 7 × 9/80 × 9 = 63/720
3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
   64/9 = 64 × 80/9 × 80 = 5120/720
4. Subtract the two like fractions:
   63/720 - 5120/720 = 63 - 5120/720 = -5057/720

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