Answers

Add 81/72 and 30/63

1^st number: 1 9/72, 2^nd number: 30/63

81/72 + 30/63 is 269/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   81/72 = 81 × 7/72 × 7 = 567/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   30/63 = 30 × 8/63 × 8 = 240/504
4. Add the two like fractions:
   567/504 + 240/504 = 567 + 240/504 = 807/504
5. 807/504 simplified gives 269/168
6. So, 81/72 + 30/63 = 269/168
   In mixed form: 1101/168

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