Answers

Subtract 45/63 from 30/15

1^st number: 2 0/15, 2^nd number: 45/63

30/15 - 45/63 is 9/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 15 × 21 = 315,
   30/15 = 30 × 21/15 × 21 = 630/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   45/63 = 45 × 5/63 × 5 = 225/315
4. Subtract the two like fractions:
   630/315 - 225/315 = 630 - 225/315 = 405/315
5. After reducing the fraction, the answer is 9/7
6. In mixed form: 12/7

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