Answers

Subtract 56/54 from 18/80

1^st number: 18/80, 2^nd number: 1 2/54

18/80 - 56/54 is -877/1080.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 54 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 80 × 27 = 2160,
   18/80 = 18 × 27/80 × 27 = 486/2160
3. Likewise, for the 2nd fraction, since 54 × 40 = 2160,
   56/54 = 56 × 40/54 × 40 = 2240/2160
4. Subtract the two like fractions:
   486/2160 - 2240/2160 = 486 - 2240/2160 = -1754/2160
5. After reducing the fraction, the answer is -877/1080

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