Answers

Add 18/42 and 18/60

18/42 + 18/60 is 51/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   18/42 = 18 × 10/42 × 10 = 180/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   18/60 = 18 × 7/60 × 7 = 126/420
4. Add the two like fractions:
   180/420 + 126/420 = 180 + 126/420 = 306/420
5. 306/420 simplified gives 51/70
6. So, 18/42 + 18/60 = 51/70

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