Answers

Subtract 40/30 from 1/42

1^st number: 1/42, 2^nd number: 1 10/30

1/42 - 40/30 is -55/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   1/42 = 1 × 5/42 × 5 = 5/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   40/30 = 40 × 7/30 × 7 = 280/210
4. Subtract the two like fractions:
   5/210 - 280/210 = 5 - 280/210 = -275/210
5. After reducing the fraction, the answer is -55/42

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