Answers

Subtract 81/30 from 27/48

1^st number: 27/48, 2^nd number: 2 21/30

27/48 - 81/30 is -171/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 30 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   27/48 = 27 × 5/48 × 5 = 135/240
3. Likewise, for the 2nd fraction, since 30 × 8 = 240,
   81/30 = 81 × 8/30 × 8 = 648/240
4. Subtract the two like fractions:
   135/240 - 648/240 = 135 - 648/240 = -513/240
5. After reducing the fraction, the answer is -171/80

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