Answers

Subtract 49/42 from 2/4

1^st number: 2/4, 2^nd number: 1 7/42

2/4 - 49/42 is -2/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   2/4 = 2 × 21/4 × 21 = 42/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   49/42 = 49 × 2/42 × 2 = 98/84
4. Subtract the two like fractions:
   42/84 - 98/84 = 42 - 98/84 = -56/84
5. After reducing the fraction, the answer is -2/3

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