Answers

Subtract 15/90 from 5/84

5/84 - 15/90 is -3/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   5/84 = 5 × 15/84 × 15 = 75/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   15/90 = 15 × 14/90 × 14 = 210/1260
4. Subtract the two like fractions:
   75/1260 - 210/1260 = 75 - 210/1260 = -135/1260
5. After reducing the fraction, the answer is -3/28

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