Nilai dari 125 2/3 - 64 1/6 + 81 3/4 =

125 2/3 - 64 1/6 + 81 3/4
= (125-64+81) + (2/3 - 1/6 + 3/4)
= 142 + 8/12 - 2/12 + 9/12
= 142 + 15/12
= 142 + 1 3/12
= 143 1/4

semoga membantu :)