Answers

Subtract 81/50 from 4/18

1^st number: 4/18, 2^nd number: 1 31/50

4/18 - 81/50 is -629/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 18 × 25 = 450,
   4/18 = 4 × 25/18 × 25 = 100/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   81/50 = 81 × 9/50 × 9 = 729/450
4. Subtract the two like fractions:
   100/450 - 729/450 = 100 - 729/450 = -629/450

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