Answers

Add 12/20 and 12/40

12/20 + 12/40 is 9/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 40 is 40
2. For the 1st fraction, since 20 × 2 = 40,
   12/20 = 12 × 2/20 × 2 = 24/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   12/40 = 12 × 1/40 × 1 = 12/40
4. Add the two fractions:
   24/40 + 12/40 = 24 + 12/40 = 36/40
5. After reducing the fraction, the answer is 9/10

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