Answers

Subtract 9/7 from 1/42

1^st number: 1/42, 2^nd number: 1 2/7

1/42 - 9/7 is -53/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   1/42 = 1 × 1/42 × 1 = 1/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   9/7 = 9 × 6/7 × 6 = 54/42
4. Subtract the two like fractions:
   1/42 - 54/42 = 1 - 54/42 = -53/42

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