Answers

Subtract 42/18 from 16/90

1^st number: 16/90, 2^nd number: 2 6/18

16/90 - 42/18 is -97/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   16/90 = 16 × 1/90 × 1 = 16/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   42/18 = 42 × 5/18 × 5 = 210/90
4. Subtract the two like fractions:
   16/90 - 210/90 = 16 - 210/90 = -194/90
5. After reducing the fraction, the answer is -97/45

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