Answers

Add 27/21 and 70/72

1^st number: 1 6/21, 2^nd number: 70/72

27/21 + 70/72 is 569/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 21 × 24 = 504,
   27/21 = 27 × 24/21 × 24 = 648/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   70/72 = 70 × 7/72 × 7 = 490/504
4. Add the two like fractions:
   648/504 + 490/504 = 648 + 490/504 = 1138/504
5. 1138/504 simplified gives 569/252
6. So, 27/21 + 70/72 = 569/252
   In mixed form: 265/252

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