Answers

Subtract 90/54 from 50/35

1^st number: 1 15/35, 2^nd number: 1 36/54

50/35 - 90/54 is -5/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 54 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 35 × 54 = 1890,
   50/35 = 50 × 54/35 × 54 = 2700/1890
3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
   90/54 = 90 × 35/54 × 35 = 3150/1890
4. Subtract the two like fractions:
   2700/1890 - 3150/1890 = 2700 - 3150/1890 = -450/1890
5. After reducing the fraction, the answer is -5/21

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