Solution
$$(2/7+3/5)=(10+21)/35=31/35.$$
and $$(2/5+2/7)=(14+10)/35=24/35.$$
So,$$(2/7+3/5)÷(2/5+2/7)$$
$$=(31/35)÷(24/35)$$
$$=31/24.$$
A is correct choice.
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