Add 18/40 and 9/12
18/40 + 9/12 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
9/12 = 9 × 10/12 × 10 = 90/120 - Add the two like fractions:
54/120 + 90/120 = 54 + 90/120 = 144/120 - 144/120 simplified gives 6/5
- So, 18/40 + 9/12 = 6/5
In mixed form: 11/5
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