Answers

Subtract 42/18 from 20/24

1^st number: 20/24, 2^nd number: 2 6/18

20/24 - 42/18 is -3/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 18 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 24 × 3 = 72,
   20/24 = 20 × 3/24 × 3 = 60/72
3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
   42/18 = 42 × 4/18 × 4 = 168/72
4. Subtract the two like fractions:
   60/72 - 168/72 = 60 - 168/72 = -108/72
5. After reducing the fraction, the answer is -3/2

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