Answers

Subtract 20/30 from 35/84

35/84 - 20/30 is -1/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   35/84 = 35 × 5/84 × 5 = 175/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   20/30 = 20 × 14/30 × 14 = 280/420
4. Subtract the two like fractions:
   175/420 - 280/420 = 175 - 280/420 = -105/420
5. After reducing the fraction, the answer is -1/4

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