Answers

Subtract 30/90 from 28/84

28/84 - 30/90 is 0/1.

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,
   28/84 = 28 × 15/84 × 15 = 420/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   30/90 = 30 × 14/90 × 14 = 420/1260
4. Subtract the two like fractions:
   420/1260 - 420/1260 = 420 - 420/1260 = 0/1260
5. The answer is 0

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