Answers

Subtract 70/54 from 20/75

1^st number: 20/75, 2^nd number: 1 16/54

20/75 - 70/54 is -139/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 54 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 75 × 18 = 1350,
   20/75 = 20 × 18/75 × 18 = 360/1350
3. Likewise, for the 2nd fraction, since 54 × 25 = 1350,
   70/54 = 70 × 25/54 × 25 = 1750/1350
4. Subtract the two like fractions:
   360/1350 - 1750/1350 = 360 - 1750/1350 = -1390/1350
5. After reducing the fraction, the answer is -139/135

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