Add 18/40 and 3/12
18/40 + 3/12 is 7/10.
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,
3/12 = 3 × 10/12 × 10 = 30/120 - Add the two like fractions:
54/120 + 30/120 = 54 + 30/120 = 84/120 - 84/120 simplified gives 7/10
- So, 18/40 + 3/12 = 7/10
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