Answers

Subtract 4/70 from 2/42

2/42 - 4/70 is -1/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   2/42 = 2 × 5/42 × 5 = 10/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   4/70 = 4 × 3/70 × 3 = 12/210
4. Subtract the two like fractions:
   10/210 - 12/210 = 10 - 12/210 = -2/210
5. After reducing the fraction, the answer is -1/105

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