Answers

Subtract 8/45 from 2/42

2/42 - 8/45 is -41/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   2/42 = 2 × 15/42 × 15 = 30/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   8/45 = 8 × 14/45 × 14 = 112/630
4. Subtract the two like fractions:
   30/630 - 112/630 = 30 - 112/630 = -82/630
5. After reducing the fraction, the answer is -41/315

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