Answers

Subtract 49/18 from 45/63

1^st number: 45/63, 2^nd number: 2 13/18

45/63 - 49/18 is -253/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   45/63 = 45 × 2/63 × 2 = 90/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   49/18 = 49 × 7/18 × 7 = 343/126
4. Subtract the two like fractions:
   90/126 - 343/126 = 90 - 343/126 = -253/126

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