Answers

Subtract 49/25 from 81/21

1^st number: 3 18/21, 2^nd number: 1 24/25

81/21 - 49/25 is 332/175.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 25 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   81/21 = 81 × 25/21 × 25 = 2025/525
3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
   49/25 = 49 × 21/25 × 21 = 1029/525
4. Subtract the two like fractions:
   2025/525 - 1029/525 = 2025 - 1029/525 = 996/525
5. After reducing the fraction, the answer is 332/175
6. In mixed form: 1157/175

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