Answers

Subtract 20/84 from 30/36

30/36 - 20/84 is 25/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 84 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   30/36 = 30 × 7/36 × 7 = 210/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   20/84 = 20 × 3/84 × 3 = 60/252
4. Subtract the two like fractions:
   210/252 - 60/252 = 210 - 60/252 = 150/252
5. After reducing the fraction, the answer is 25/42

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