Answers

Subtract 84/10 from 5/42

1^st number: 5/42, 2^nd number: 8 4/10

5/42 - 84/10 is -1739/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   5/42 = 5 × 5/42 × 5 = 25/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   84/10 = 84 × 21/10 × 21 = 1764/210
4. Subtract the two like fractions:
   25/210 - 1764/210 = 25 - 1764/210 = -1739/210

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