Answers

Subtract 56/75 from 3/21

3/21 - 56/75 is -317/525.

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,
   3/21 = 3 × 25/21 × 25 = 75/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   56/75 = 56 × 7/75 × 7 = 392/525
4. Subtract the two like fractions:
   75/525 - 392/525 = 75 - 392/525 = -317/525

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