Answers

Subtract 40/42 from 75/25

1^st number: 3 0/25, 2^nd number: 40/42

75/25 - 40/42 is 43/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 42 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 25 × 42 = 1050,
   75/25 = 75 × 42/25 × 42 = 3150/1050
3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
   40/42 = 40 × 25/42 × 25 = 1000/1050
4. Subtract the two like fractions:
   3150/1050 - 1000/1050 = 3150 - 1000/1050 = 2150/1050
5. After reducing the fraction, the answer is 43/21
6. In mixed form: 21/21

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