Answers

Subtract 54/42 from 1/30

1^st number: 1/30, 2^nd number: 1 12/42

1/30 - 54/42 is -263/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   1/30 = 1 × 7/30 × 7 = 7/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   54/42 = 54 × 5/42 × 5 = 270/210
4. Subtract the two like fractions:
   7/210 - 270/210 = 7 - 270/210 = -263/210

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