Answers

Add 72/4 and 90/84

1^st number: 18 0/4, 2^nd number: 1 6/84

72/4 + 90/84 is 267/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   72/4 = 72 × 21/4 × 21 = 1512/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   90/84 = 90 × 1/84 × 1 = 90/84
4. Add the two like fractions:
   1512/84 + 90/84 = 1512 + 90/84 = 1602/84
5. 1602/84 simplified gives 267/14
6. So, 72/4 + 90/84 = 267/14
   In mixed form: 191/14

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