Answers

Add 72/84 and 90/5

1^st number: 72/84, 2^nd number: 18 0/5

72/84 + 90/5 is 132/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 5 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   72/84 = 72 × 5/84 × 5 = 360/420
3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
   90/5 = 90 × 84/5 × 84 = 7560/420
4. Add the two like fractions:
   360/420 + 7560/420 = 360 + 7560/420 = 7920/420
5. 7920/420 simplified gives 132/7
6. So, 72/84 + 90/5 = 132/7
   In mixed form: 186/7

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