Answers

Subtract 1/40 from 90/75

1^st number: 1 15/75, 2^nd number: 1/40

90/75 - 1/40 is 47/40.

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,
   90/75 = 90 × 8/75 × 8 = 720/600
3. Likewise, for the 2nd fraction, since 40 × 15 = 600,
   1/40 = 1 × 15/40 × 15 = 15/600
4. Subtract the two like fractions:
   720/600 - 15/600 = 720 - 15/600 = 705/600
5. After reducing the fraction, the answer is 47/40
6. In mixed form: 17/40

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