Answers

Subtract 70/16 from 25/63

1^st number: 25/63, 2^nd number: 4 6/16

25/63 - 70/16 is -2005/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 16 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 63 × 16 = 1008,
   25/63 = 25 × 16/63 × 16 = 400/1008
3. Likewise, for the 2nd fraction, since 16 × 63 = 1008,
   70/16 = 70 × 63/16 × 63 = 4410/1008
4. Subtract the two like fractions:
   400/1008 - 4410/1008 = 400 - 4410/1008 = -4010/1008
5. After reducing the fraction, the answer is -2005/504

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