Add 12/40 and 9/20
12/40 + 9/20 is 3/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
12/40 = 12 × 1/40 × 1 = 12/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
9/20 = 9 × 2/20 × 2 = 18/40 - Add the two like fractions:
12/40 + 18/40 = 12 + 18/40 = 30/40 - 30/40 simplified gives 3/4
- So, 12/40 + 9/20 = 3/4
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