Answers

Subtract 42/80 from 84/9

1^st number: 9 3/9, 2^nd number: 42/80

84/9 - 42/80 is 1057/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 9 × 80 = 720,
   84/9 = 84 × 80/9 × 80 = 6720/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   42/80 = 42 × 9/80 × 9 = 378/720
4. Subtract the two like fractions:
   6720/720 - 378/720 = 6720 - 378/720 = 6342/720
5. After reducing the fraction, the answer is 1057/120
6. In mixed form: 897/120

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