Answers

Subtract 27/42 from 18/5

1^st number: 3 3/5, 2^nd number: 27/42

18/5 - 27/42 is 207/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 5 × 42 = 210,
   18/5 = 18 × 42/5 × 42 = 756/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   27/42 = 27 × 5/42 × 5 = 135/210
4. Subtract the two like fractions:
   756/210 - 135/210 = 756 - 135/210 = 621/210
5. After reducing the fraction, the answer is 207/70
6. In mixed form: 267/70

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