Answers

Subtract 50/30 from 18/84

1^st number: 18/84, 2^nd number: 1 20/30

18/84 - 50/30 is -61/42.

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,
   18/84 = 18 × 5/84 × 5 = 90/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   50/30 = 50 × 14/30 × 14 = 700/420
4. Subtract the two like fractions:
   90/420 - 700/420 = 90 - 700/420 = -610/420
5. After reducing the fraction, the answer is -61/42

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