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Answer:
first we have to find the sum of given numbers
2/3+(-1/7)
take LCM of 3 and 7
that's 21
now
(14-3)/21=11/21 ...(1)
step 2
now the difference of given numbers
2/3-(-1/7)
LCM is 21
(14+3)/21=17/21 ....(2)
according to question
divided equation (1) by (2)
(11/21)÷(17/21)
=11/17 answer
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