Answers

Subtract 7/81 from 5/24

5/24 - 7/81 is 79/648.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 81 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 24 × 27 = 648,
   5/24 = 5 × 27/24 × 27 = 135/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   7/81 = 7 × 8/81 × 8 = 56/648
4. Subtract the two like fractions:
   135/648 - 56/648 = 135 - 56/648 = 79/648

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