Answers

Subtract 42/81 from 63/25

1^st number: 2 13/25, 2^nd number: 42/81

63/25 - 42/81 is 1351/675.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 25 × 81 = 2025,
   63/25 = 63 × 81/25 × 81 = 5103/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   42/81 = 42 × 25/81 × 25 = 1050/2025
4. Subtract the two like fractions:
   5103/2025 - 1050/2025 = 5103 - 1050/2025 = 4053/2025
5. After reducing the fraction, the answer is 1351/675
6. In mixed form: 21/675

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