Answers

Subtract 27/18 from 4/5

1^st number: 4/5, 2^nd number: 1 9/18

4/5 - 27/18 is -7/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 5 × 18 = 90,
   4/5 = 4 × 18/5 × 18 = 72/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   27/18 = 27 × 5/18 × 5 = 135/90
4. Subtract the two like fractions:
   72/90 - 135/90 = 72 - 135/90 = -63/90
5. After reducing the fraction, the answer is -7/10

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