Answers

Subtract 75/45 from 15/84

1^st number: 15/84, 2^nd number: 1 30/45

15/84 - 75/45 is -125/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   15/84 = 15 × 15/84 × 15 = 225/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   75/45 = 75 × 28/45 × 28 = 2100/1260
4. Subtract the two like fractions:
   225/1260 - 2100/1260 = 225 - 2100/1260 = -1875/1260
5. After reducing the fraction, the answer is -125/84

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