Answers

Add 49/28 and 28/72

1^st number: 1 21/28, 2^nd number: 28/72

49/28 + 28/72 is 77/36.

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,
   49/28 = 49 × 18/28 × 18 = 882/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   28/72 = 28 × 7/72 × 7 = 196/504
4. Add the two like fractions:
   882/504 + 196/504 = 882 + 196/504 = 1078/504
5. 1078/504 simplified gives 77/36
6. So, 49/28 + 28/72 = 77/36
   In mixed form: 25/36

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