Answers

Subtract 12/21 from 35/18

1^st number: 1 17/18, 2^nd number: 12/21

35/18 - 12/21 is 173/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 21 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 21 × 6 = 126,
   12/21 = 12 × 6/21 × 6 = 72/126
4. Subtract the two like fractions:
   245/126 - 72/126 = 245 - 72/126 = 173/126
5. In mixed form: 147/126

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