Answers

Subtract 60/5 from 42/20

1^st number: 2 2/20, 2^nd number: 12 0/5

42/20 - 60/5 is -99/10.

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,
   42/20 = 42 × 1/20 × 1 = 42/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   60/5 = 60 × 4/5 × 4 = 240/20
4. Subtract the two like fractions:
   42/20 - 240/20 = 42 - 240/20 = -198/20
5. After reducing the fraction, the answer is -99/10

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