Answers

Add 60/21 and 18/72

1^st number: 2 18/21, 2^nd number: 18/72

60/21 + 18/72 is 87/28.

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,
   60/21 = 60 × 24/21 × 24 = 1440/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   18/72 = 18 × 7/72 × 7 = 126/504
4. Add the two like fractions:
   1440/504 + 126/504 = 1440 + 126/504 = 1566/504
5. 1566/504 simplified gives 87/28
6. So, 60/21 + 18/72 = 87/28
   In mixed form: 33/28

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