Answers

Subtract 20/12 from 35/84

1^st number: 35/84, 2^nd number: 1 8/12

35/84 - 20/12 is -5/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   35/84 = 35 × 1/84 × 1 = 35/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   20/12 = 20 × 7/12 × 7 = 140/84
4. Subtract the two like fractions:
   35/84 - 140/84 = 35 - 140/84 = -105/84
5. After reducing the fraction, the answer is -5/4

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