Answers

Subtract 40/21 from 40/75

1^st number: 40/75, 2^nd number: 1 19/21

40/75 - 40/21 is -48/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 21 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 75 × 7 = 525,
   40/75 = 40 × 7/75 × 7 = 280/525
3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
   40/21 = 40 × 25/21 × 25 = 1000/525
4. Subtract the two like fractions:
   280/525 - 1000/525 = 280 - 1000/525 = -720/525
5. After reducing the fraction, the answer is -48/35

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