Answers

Add 5/72 and 20/18

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

5/72 + 20/18 is 85/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 18 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   5/72 = 5 × 1/72 × 1 = 5/72
3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
   20/18 = 20 × 4/18 × 4 = 80/72
4. Add the two like fractions:
   5/72 + 80/72 = 5 + 80/72 = 85/72
5. So, 5/72 + 20/18 = 85/72
   In mixed form: 113/72

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