Answers

Add 90/18 and 12/72

1^st number: 5 0/18, 2^nd number: 12/72

90/18 + 12/72 is 31/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 18 × 4 = 72,
   90/18 = 90 × 4/18 × 4 = 360/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   12/72 = 12 × 1/72 × 1 = 12/72
4. Add the two like fractions:
   360/72 + 12/72 = 360 + 12/72 = 372/72
5. 372/72 simplified gives 31/6
6. So, 90/18 + 12/72 = 31/6
   In mixed form: 51/6

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