Answers

Subtract 9/84 from 63/5

1^st number: 12 3/5, 2^nd number: 9/84

63/5 - 9/84 is 1749/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 5 × 84 = 420,
   63/5 = 63 × 84/5 × 84 = 5292/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   9/84 = 9 × 5/84 × 5 = 45/420
4. Subtract the two like fractions:
   5292/420 - 45/420 = 5292 - 45/420 = 5247/420
5. After reducing the fraction, the answer is 1749/140
6. In mixed form: 1269/140

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