Answers

Add 45/28 and 63/72

1^st number: 1 17/28, 2^nd number: 63/72

45/28 + 63/72 is 139/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   45/28 = 45 × 18/28 × 18 = 810/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
4. Add the two like fractions:
   810/504 + 441/504 = 810 + 441/504 = 1251/504
5. 1251/504 simplified gives 139/56
6. So, 45/28 + 63/72 = 139/56
   In mixed form: 227/56

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