Answers

Subtract 42/24 from 7/18

1^st number: 7/18, 2^nd number: 1 18/24

7/18 - 42/24 is -49/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 24 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 18 × 4 = 72,
   7/18 = 7 × 4/18 × 4 = 28/72
3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
   42/24 = 42 × 3/24 × 3 = 126/72
4. Subtract the two like fractions:
   28/72 - 126/72 = 28 - 126/72 = -98/72
5. After reducing the fraction, the answer is -49/36

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