Answers

Subtract 90/27 from 18/50

1^st number: 18/50, 2^nd number: 3 9/27

18/50 - 90/27 is -223/75.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 27 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 50 × 27 = 1350,
   18/50 = 18 × 27/50 × 27 = 486/1350
3. Likewise, for the 2nd fraction, since 27 × 50 = 1350,
   90/27 = 90 × 50/27 × 50 = 4500/1350
4. Subtract the two like fractions:
   486/1350 - 4500/1350 = 486 - 4500/1350 = -4014/1350
5. After reducing the fraction, the answer is -223/75

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