Answers

Add 18/40 and 6/80

18/40 + 6/80 is 21/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   18/40 = 18 × 2/40 × 2 = 36/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   6/80 = 6 × 1/80 × 1 = 6/80
4. Add the two like fractions:
   36/80 + 6/80 = 36 + 6/80 = 42/80
5. 42/80 simplified gives 21/40
6. So, 18/40 + 6/80 = 21/40

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