Answers

Add 84/45 and 28/72

1^st number: 1 39/45, 2^nd number: 28/72

84/45 + 28/72 is 203/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 45 × 8 = 360,
   84/45 = 84 × 8/45 × 8 = 672/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   28/72 = 28 × 5/72 × 5 = 140/360
4. Add the two like fractions:
   672/360 + 140/360 = 672 + 140/360 = 812/360
5. 812/360 simplified gives 203/90
6. So, 84/45 + 28/72 = 203/90
   In mixed form: 223/90

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