Answers

Subtract 40/21 from 10/75

1^st number: 10/75, 2^nd number: 1 19/21

10/75 - 40/21 is -62/35.

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,
   10/75 = 10 × 7/75 × 7 = 70/525
3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
   40/21 = 40 × 25/21 × 25 = 1000/525
4. Subtract the two like fractions:
   70/525 - 1000/525 = 70 - 1000/525 = -930/525
5. After reducing the fraction, the answer is -62/35

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