Answers

Add 18/36 and 3/42

18/36 + 3/42 is 4/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 42 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   18/36 = 18 × 7/36 × 7 = 126/252
3. Likewise, for the 2nd fraction, since 42 × 6 = 252,
   3/42 = 3 × 6/42 × 6 = 18/252
4. Add the two like fractions:
   126/252 + 18/252 = 126 + 18/252 = 144/252
5. 144/252 simplified gives 4/7
6. So, 18/36 + 3/42 = 4/7

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