Answers

Subtract 45/8 from 12/84

1^st number: 12/84, 2^nd number: 5 5/8

12/84 - 45/8 is -307/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   12/84 = 12 × 2/84 × 2 = 24/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   45/8 = 45 × 21/8 × 21 = 945/168
4. Subtract the two like fractions:
   24/168 - 945/168 = 24 - 945/168 = -921/168
5. After reducing the fraction, the answer is -307/56

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