Answers

Subtract 72/80 from 4/75

4/75 - 72/80 is -127/150.

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,
   4/75 = 4 × 16/75 × 16 = 64/1200
3. Likewise, for the 2nd fraction, since 80 × 15 = 1200,
   72/80 = 72 × 15/80 × 15 = 1080/1200
4. Subtract the two like fractions:
   64/1200 - 1080/1200 = 64 - 1080/1200 = -1016/1200
5. After reducing the fraction, the answer is -127/150

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