Answers

Subtract 20/80 from 80/54

1^st number: 1 26/54, 2^nd number: 20/80

80/54 - 20/80 is 133/108.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 80 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 54 × 40 = 2160,
   80/54 = 80 × 40/54 × 40 = 3200/2160
3. Likewise, for the 2nd fraction, since 80 × 27 = 2160,
   20/80 = 20 × 27/80 × 27 = 540/2160
4. Subtract the two like fractions:
   3200/2160 - 540/2160 = 3200 - 540/2160 = 2660/2160
5. After reducing the fraction, the answer is 133/108
6. In mixed form: 125/108

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