Answers

Subtract 63/45 from 15/30

1^st number: 15/30, 2^nd number: 1 18/45

15/30 - 63/45 is -9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 30 × 3 = 90,
   15/30 = 15 × 3/30 × 3 = 45/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   63/45 = 63 × 2/45 × 2 = 126/90
4. Subtract the two like fractions:
   45/90 - 126/90 = 45 - 126/90 = -81/90
5. After reducing the fraction, the answer is -9/10

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