Answers

Subtract 18/12 from 50/90

1^st number: 50/90, 2^nd number: 1 6/12

50/90 - 18/12 is -17/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 12 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   50/90 = 50 × 2/90 × 2 = 100/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   18/12 = 18 × 15/12 × 15 = 270/180
4. Subtract the two like fractions:
   100/180 - 270/180 = 100 - 270/180 = -170/180
5. After reducing the fraction, the answer is -17/18

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