Answers

Subtract 8/84 from 30/90

30/90 - 8/84 is 5/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 84 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 90 × 14 = 1260,
   30/90 = 30 × 14/90 × 14 = 420/1260
3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
   8/84 = 8 × 15/84 × 15 = 120/1260
4. Subtract the two like fractions:
   420/1260 - 120/1260 = 420 - 120/1260 = 300/1260
5. After reducing the fraction, the answer is 5/21

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