Answers

Subtract 63/80 from 81/25

1^st number: 3 6/25, 2^nd number: 63/80

81/25 - 63/80 is 981/400.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 80 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 25 × 16 = 400,
   81/25 = 81 × 16/25 × 16 = 1296/400
3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
   63/80 = 63 × 5/80 × 5 = 315/400
4. Subtract the two like fractions:
   1296/400 - 315/400 = 1296 - 315/400 = 981/400
5. In mixed form: 2181/400

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