Answers

Add 81/63 and 4/45

1^st number: 1 18/63, 2^nd number: 4/45

81/63 + 4/45 is 433/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   81/63 = 81 × 5/63 × 5 = 405/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   4/45 = 4 × 7/45 × 7 = 28/315
4. Add the two like fractions:
   405/315 + 28/315 = 405 + 28/315 = 433/315
5. So, 81/63 + 4/45 = 433/315
   In mixed form: 1118/315

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