Astronauts increased in height by an average of approximately 40 mm during the Apollo-Soyuz missions, due to the absence of grav
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We have to add 8/15 to 2/5.
To add two fractions we have to make them have the same denominator, so we have to convert 2/5 to have a denominator of 15. To do this, we have to multiply 2/5 by 3 and then we can add the fractions:
Answer: 14/15