Answers

Subtract 70/75 from 5/21

5/21 - 70/75 is -73/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 75 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   5/21 = 5 × 25/21 × 25 = 125/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   70/75 = 70 × 7/75 × 7 = 490/525
4. Subtract the two like fractions:
   125/525 - 490/525 = 125 - 490/525 = -365/525
5. After reducing the fraction, the answer is -73/105

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