Answers

Add 84/28 and 72/35

1^st number: 3 0/28, 2^nd number: 2 2/35

84/28 + 72/35 is 177/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 35 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 28 × 5 = 140,
   84/28 = 84 × 5/28 × 5 = 420/140
3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
   72/35 = 72 × 4/35 × 4 = 288/140
4. Add the two like fractions:
   420/140 + 288/140 = 420 + 288/140 = 708/140
5. 708/140 simplified gives 177/35
6. So, 84/28 + 72/35 = 177/35
   In mixed form: 52/35

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