Answers

Subtract 21/90 from 6/96

6/96 - 21/90 is -41/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 90 is 1440
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1440
2. For the 1st fraction, since 96 × 15 = 1440,
   6/96 = 6 × 15/96 × 15 = 90/1440
3. Likewise, for the 2nd fraction, since 90 × 16 = 1440,
   21/90 = 21 × 16/90 × 16 = 336/1440
4. Subtract the two like fractions:
   90/1440 - 336/1440 = 90 - 336/1440 = -246/1440
5. After reducing the fraction, the answer is -41/240

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