Answers

Subtract 80/72 from 15/75

1^st number: 15/75, 2^nd number: 1 8/72

15/75 - 80/72 is -41/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 75 × 24 = 1800,
   15/75 = 15 × 24/75 × 24 = 360/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   80/72 = 80 × 25/72 × 25 = 2000/1800
4. Subtract the two like fractions:
   360/1800 - 2000/1800 = 360 - 2000/1800 = -1640/1800
5. After reducing the fraction, the answer is -41/45

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