Toán Lớp 7: Bài 1:tính
c)12. $ (-\frac{ 2}{3})^{2}$ + $\frac{4}{3}$
d)12,5. $(-\frac{5}{7})$ +1,5. $(-\frac{5}{7})$
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Toán Lớp 7: Bài 1:tính
c)12. $ (-\frac{ 2}{3})^{2}$ + $\frac{4}{3}$
d)12,5. $(-\frac{5}{7})$ +1,5. $(-\frac{5}{7})$
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