Answers

Subtract 8/54 from 81/30

1^st number: 2 21/30, 2^nd number: 8/54

81/30 - 8/54 is 689/270.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 54 is 270
2. For the 1st fraction, since 30 × 9 = 270,
   81/30 = 81 × 9/30 × 9 = 729/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   8/54 = 8 × 5/54 × 5 = 40/270
4. Subtract the two fractions:
   729/270 - 40/270 = 729 - 40/270 = 689/270
5. In mixed form: 2149/270

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