Answers

Subtract 80/21 from 24/42

1^st number: 24/42, 2^nd number: 3 17/21

24/42 - 80/21 is -68/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   24/42 = 24 × 1/42 × 1 = 24/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   80/21 = 80 × 2/21 × 2 = 160/42
4. Subtract the two like fractions:
   24/42 - 160/42 = 24 - 160/42 = -136/42
5. After reducing the fraction, the answer is -68/21

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