Answers

Add 7/72 and 63/21

1^st number: 7/72, 2^nd number: 3 0/21

7/72 + 63/21 is 223/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 21 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   7/72 = 7 × 7/72 × 7 = 49/504
3. Likewise, for the 2nd fraction, since 21 × 24 = 504,
   63/21 = 63 × 24/21 × 24 = 1512/504
4. Add the two like fractions:
   49/504 + 1512/504 = 49 + 1512/504 = 1561/504
5. 1561/504 simplified gives 223/72
6. So, 7/72 + 63/21 = 223/72
   In mixed form: 37/72

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