Answers

Subtract 45/30 from 45/42

1^st number: 1 3/42, 2^nd number: 1 15/30

45/42 - 45/30 is -3/7.

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,
   45/42 = 45 × 5/42 × 5 = 225/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   45/30 = 45 × 7/30 × 7 = 315/210
4. Subtract the two like fractions:
   225/210 - 315/210 = 225 - 315/210 = -90/210
5. After reducing the fraction, the answer is -3/7

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