Answers

Subtract 25/8 from 84/63

1^st number: 1 21/63, 2^nd number: 3 1/8

84/63 - 25/8 is -43/24.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 8 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   84/63 = 84 × 8/63 × 8 = 672/504
3. Likewise, for the 2nd fraction, since 8 × 63 = 504,
   25/8 = 25 × 63/8 × 63 = 1575/504
4. Subtract the two like fractions:
   672/504 - 1575/504 = 672 - 1575/504 = -903/504
5. After reducing the fraction, the answer is -43/24

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