Answers

Add 20/18 and 70/72

1^st number: 1 2/18, 2^nd number: 70/72

20/18 + 70/72 is 25/12.

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,
   20/18 = 20 × 4/18 × 4 = 80/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   70/72 = 70 × 1/72 × 1 = 70/72
4. Add the two like fractions:
   80/72 + 70/72 = 80 + 70/72 = 150/72
5. 150/72 simplified gives 25/12
6. So, 20/18 + 70/72 = 25/12
   In mixed form: 21/12

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