Answers

Subtract 63/80 from 40/75

40/75 - 63/80 is -61/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 80 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 75 × 16 = 1200,
   40/75 = 40 × 16/75 × 16 = 640/1200
3. Likewise, for the 2nd fraction, since 80 × 15 = 1200,
   63/80 = 63 × 15/80 × 15 = 945/1200
4. Subtract the two like fractions:
   640/1200 - 945/1200 = 640 - 945/1200 = -305/1200
5. After reducing the fraction, the answer is -61/240

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