Answers

Add 42/63 and 42/27

1^st number: 42/63, 2^nd number: 1 15/27

42/63 + 42/27 is 20/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 63 × 3 = 189,
   42/63 = 42 × 3/63 × 3 = 126/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   42/27 = 42 × 7/27 × 7 = 294/189
4. Add the two like fractions:
   126/189 + 294/189 = 126 + 294/189 = 420/189
5. 420/189 simplified gives 20/9
6. So, 42/63 + 42/27 = 20/9
   In mixed form: 22/9

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