Answers

Subtract 35/20 from 15/63

1^st number: 15/63, 2^nd number: 1 15/20

15/63 - 35/20 is -127/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   15/63 = 15 × 20/63 × 20 = 300/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   35/20 = 35 × 63/20 × 63 = 2205/1260
4. Subtract the two like fractions:
   300/1260 - 2205/1260 = 300 - 2205/1260 = -1905/1260
5. After reducing the fraction, the answer is -127/84

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