Answers

Subtract 42/75 from 42/21

1^st number: 2 0/21, 2^nd number: 42/75

42/21 - 42/75 is 36/25.

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,
   42/21 = 42 × 25/21 × 25 = 1050/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   42/75 = 42 × 7/75 × 7 = 294/525
4. Subtract the two like fractions:
   1050/525 - 294/525 = 1050 - 294/525 = 756/525
5. After reducing the fraction, the answer is 36/25
6. In mixed form: 111/25

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