Add 18/40 and 3/80
18/40 + 3/80 is 39/80.
Steps for adding fractions
- 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 - For the 1st fraction, since 40 × 2 = 80,
18/40 = 18 × 2/40 × 2 = 36/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Add the two like fractions:
36/80 + 3/80 = 36 + 3/80 = 39/80 - So, 18/40 + 3/80 = 39/80
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