998 of 999 + 665 of 666 + 332 of 333-110 of 111

998 of 999 + 666 of 665 + 333 of 332-111 of 110 = 1-1 / 999 + 1-1 / 666 + 1-1 / 333-1 + 1 / 111 = 2 + 1 / 111-1 / 999-1 / 666-1 / 333 = 2 + 1 / 999x (9-1-1.5-3) = 2 + 1 / 999x3.5 = 2 + 7 / 1998 = 2 and 7 / 1998

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