Answers

Subtract 42/5 from 3/20

1^st number: 3/20, 2^nd number: 8 2/5

3/20 - 42/5 is -33/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 5 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   3/20 = 3 × 1/20 × 1 = 3/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   42/5 = 42 × 4/5 × 4 = 168/20
4. Subtract the two like fractions:
   3/20 - 168/20 = 3 - 168/20 = -165/20
5. After reducing the fraction, the answer is -33/4

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