Answers

Add 90/35 and 70/54

1^st number: 2 20/35, 2^nd number: 1 16/54

90/35 + 70/54 is 731/189.

Steps for adding 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,
   90/35 = 90 × 54/35 × 54 = 4860/1890
3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
   70/54 = 70 × 35/54 × 35 = 2450/1890
4. Add the two like fractions:
   4860/1890 + 2450/1890 = 4860 + 2450/1890 = 7310/1890
5. 7310/1890 simplified gives 731/189
6. So, 90/35 + 70/54 = 731/189
   In mixed form: 3164/189

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