Answers

Subtract 45/25 from 9/84

1^st number: 9/84, 2^nd number: 1 20/25

9/84 - 45/25 is -237/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 25 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   9/84 = 9 × 25/84 × 25 = 225/2100
3. Likewise, for the 2nd fraction, since 25 × 84 = 2100,
   45/25 = 45 × 84/25 × 84 = 3780/2100
4. Subtract the two like fractions:
   225/2100 - 3780/2100 = 225 - 3780/2100 = -3555/2100
5. After reducing the fraction, the answer is -237/140

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