Answers

Add 72/28 and 45/25

1^st number: 2 16/28, 2^nd number: 1 20/25

72/28 + 45/25 is 153/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 25 is 700
   
   Next, find the equivalent fraction of both fractional numbers with denominator 700
2. For the 1st fraction, since 28 × 25 = 700,
   72/28 = 72 × 25/28 × 25 = 1800/700
3. Likewise, for the 2nd fraction, since 25 × 28 = 700,
   45/25 = 45 × 28/25 × 28 = 1260/700
4. Add the two like fractions:
   1800/700 + 1260/700 = 1800 + 1260/700 = 3060/700
5. 3060/700 simplified gives 153/35
6. So, 72/28 + 45/25 = 153/35
   In mixed form: 413/35

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