Answers

Subtract 18/45 from 80/63

1^st number: 1 17/63, 2^nd number: 18/45

80/63 - 18/45 is 274/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   80/63 = 80 × 5/63 × 5 = 400/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   18/45 = 18 × 7/45 × 7 = 126/315
4. Subtract the two like fractions:
   400/315 - 126/315 = 400 - 126/315 = 274/315

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