Toán Lớp 7: (1/2 - 1/3) - (5/3 - 3/2) + (7/3 - 5/2) Giúp với ạ

(1/2-1/3)-(5/3-3/2)+(7/3-5/2) =1/2-1/3-5/3+3/2+7/3-5/2 =(1/2+3/2-5/2)+(7/3-1/3-5/3) =(2-5/2)+(2-5/3) =-1/2+1/3 =-3/6+2/6 =-1/6

(1/2 - 1/3 )-(5/3-3/2)+(7/3-5/2) =1/2 -1/3 - 5/3 + 3/2 + 7/3 - 5/2 =(1/2 - 5/2 + 3/2)+(7/3 - 1/3 -5/3) =-1/2 + 1/3 =-3/6 + 2/6 =1/6

Toán Lớp 7: (1/2 - 1/3) - (5/3 - 3/2) + (7/3

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