Answers

Subtract 20/40 from 84/2

1^st number: 42 0/2, 2^nd number: 20/40

84/2 - 20/40 is 83/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 2 × 20 = 40,
   84/2 = 84 × 20/2 × 20 = 1680/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   20/40 = 20 × 1/40 × 1 = 20/40
4. Subtract the two like fractions:
   1680/40 - 20/40 = 1680 - 20/40 = 1660/40
5. After reducing the fraction, the answer is 83/2
6. In mixed form: 411/2

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