Answers

Subtract 15/4 from 25/40

1^st number: 25/40, 2^nd number: 3 3/4

25/40 - 15/4 is -25/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 4 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 40 × 1 = 40,
   25/40 = 25 × 1/40 × 1 = 25/40
3. Likewise, for the 2nd fraction, since 4 × 10 = 40,
   15/4 = 15 × 10/4 × 10 = 150/40
4. Subtract the two like fractions:
   25/40 - 150/40 = 25 - 150/40 = -125/40
5. After reducing the fraction, the answer is -25/8

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