Answers

Add 80/35 and 63/54

1^st number: 2 10/35, 2^nd number: 1 9/54

80/35 + 63/54 is 145/42.

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,
   80/35 = 80 × 54/35 × 54 = 4320/1890
3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
   63/54 = 63 × 35/54 × 35 = 2205/1890
4. Add the two like fractions:
   4320/1890 + 2205/1890 = 4320 + 2205/1890 = 6525/1890
5. 6525/1890 simplified gives 145/42
6. So, 80/35 + 63/54 = 145/42
   In mixed form: 319/42

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