Answers

Subtract 90/72 from 5/12

1^st number: 5/12, 2^nd number: 1 18/72

5/12 - 90/72 is -5/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 12 × 6 = 72,
   5/12 = 5 × 6/12 × 6 = 30/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   90/72 = 90 × 1/72 × 1 = 90/72
4. Subtract the two like fractions:
   30/72 - 90/72 = 30 - 90/72 = -60/72
5. After reducing the fraction, the answer is -5/6

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