Draw a bar model with 7 equal units. 2 units = apples, 5 units = oranges. The gap of 3 units = 6.

Apples = 2/7 of total. Oranges = the rest = 1 - 2/7 = 5/7 of total.
Difference	=	\(\dfrac{5}{7} - \dfrac{2}{7} = \dfrac{3}{7}\)
3/7 of the total = 6 fruits (the "6 more oranges than apples").
1/7 of total	=	6 \(\div\) 3 = 2 fruits
Total (7/7)	=	2 x 7 = 14 fruits