Answers

Subtract 81/40 from 40/75

1^st number: 40/75, 2^nd number: 2 1/40

40/75 - 81/40 is -179/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 40 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 75 × 8 = 600,
   40/75 = 40 × 8/75 × 8 = 320/600
3. Likewise, for the 2nd fraction, since 40 × 15 = 600,
   81/40 = 81 × 15/40 × 15 = 1215/600
4. Subtract the two like fractions:
   320/600 - 1215/600 = 320 - 1215/600 = -895/600
5. After reducing the fraction, the answer is -179/120

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