Answers

Subtract 70/63 from 20/18

1^st number: 1 2/18, 2^nd number: 1 7/63

20/18 - 70/63 is 0/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   20/18 = 20 × 7/18 × 7 = 140/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
4. Subtract the two like fractions:
   140/126 - 140/126 = 140 - 140/126 = 0/126
5. The answer is 0

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