Add 18/80 and 5/40
18/80 + 5/40 is 7/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
5/40 = 5 × 2/40 × 2 = 10/80 - Add the two like fractions:
18/80 + 10/80 = 18 + 10/80 = 28/80 - 28/80 simplified gives 7/20
- So, 18/80 + 5/40 = 7/20
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