Answers

Subtract 45/12 from 84/40

1^st number: 2 4/40, 2^nd number: 3 9/12

84/40 - 45/12 is -33/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 12 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   84/40 = 84 × 3/40 × 3 = 252/120
3. Likewise, for the 2nd fraction, since 12 × 10 = 120,
   45/12 = 45 × 10/12 × 10 = 450/120
4. Subtract the two like fractions:
   252/120 - 450/120 = 252 - 450/120 = -198/120
5. After reducing the fraction, the answer is -33/20

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