Answers

Subtract 1/84 from 42/30

1^st number: 1 12/30, 2^nd number: 1/84

42/30 - 1/84 is 583/420.

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,
   42/30 = 42 × 14/30 × 14 = 588/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   1/84 = 1 × 5/84 × 5 = 5/420
4. Subtract the two like fractions:
   588/420 - 5/420 = 588 - 5/420 = 583/420
5. In mixed form: 1163/420

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