Answers

Subtract 20/42 from 35/18

1^st number: 1 17/18, 2^nd number: 20/42

35/18 - 20/42 is 185/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   35/18 = 35 × 7/18 × 7 = 245/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   20/42 = 20 × 3/42 × 3 = 60/126
4. Subtract the two like fractions:
   245/126 - 60/126 = 245 - 60/126 = 185/126
5. In mixed form: 159/126

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