Answers

Add 72/90 and 36/12

1^st number: 72/90, 2^nd number: 3 0/12

72/90 + 36/12 is 19/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 12 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   72/90 = 72 × 2/90 × 2 = 144/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   36/12 = 36 × 15/12 × 15 = 540/180
4. Add the two like fractions:
   144/180 + 540/180 = 144 + 540/180 = 684/180
5. 684/180 simplified gives 19/5
6. So, 72/90 + 36/12 = 19/5
   In mixed form: 34/5

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