A rational number exactly half way between 1/15 and 1/12 is
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Answer:
3 / 40
Step-by-step explanation:
A rational number exactly half way between 1/15 and 1/12 is the mean of the two numbers
mean of two numbers is sum of two numbers divided by 2
so mean of 1/15 and 1/12 = { ( 1/ 15 ) + ( 1 / 12 ) } / 2
LCM of 15 and 12 is 60
mean of 1/15 and 1/12 = { ( 4 / 60 ) + ( 5 / 60 ) } / 2
= ( 9 / 60 ) / 2
= ( 3 / 20 ) / 2
= ( 3 / 20 ) x ( 1 / 2 )
= 3 / 40
so A rational number exactly half way between 1/15 and 1/12 is 3 / 40
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