Answers

Subtract 9/84 from 2/30

2/30 - 9/84 is -17/420.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 30 × 14 = 420,
   2/30 = 2 × 14/30 × 14 = 28/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   9/84 = 9 × 5/84 × 5 = 45/420
4. Subtract the two like fractions:
   28/420 - 45/420 = 28 - 45/420 = -17/420

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