Answers

Subtract 8/9 from 27/20

1^st number: 1 7/20, 2^nd number: 8/9

27/20 - 8/9 is 83/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   27/20 = 27 × 9/20 × 9 = 243/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   8/9 = 8 × 20/9 × 20 = 160/180
4. Subtract the two like fractions:
   243/180 - 160/180 = 243 - 160/180 = 83/180

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