tính như bth thôi ráng lên bạn nhá
Đúng 0
Bình luận (4)
\(y x 4/9 - 5/8 = 1/2 : 2/3\)
\(y x 4/9 - 5/8 = 3/4\)
\(y x 4/9 = 3/4 + 5/8\)
\(y x 4/9 = 11/8\)
\(y = 11/8 : 4/9\)
\(y = 99/32\)
Đúng 1
Bình luận (2)
\(y\times\dfrac{4}{9}-\dfrac{5}{8}=\dfrac{1}{2}\times\dfrac{3}{2}\)
\(y\times\dfrac{4}{9}-\dfrac{5}{8}=\dfrac{3}{4}\)
\(y\times\dfrac{4}{9}=\dfrac{3}{4}+\dfrac{5}{8}\)
\(y\times\dfrac{4}{9}=\dfrac{6}{8}+\dfrac{5}{8}\)
\(y\times\dfrac{4}{9}=\dfrac{11}{8}\)
\(y=\dfrac{11}{8}:\dfrac{4}{9}\)
\(y=\dfrac{11}{8}\times\dfrac{9}{4}\)
\(y=\dfrac{99}{32}\)
Đúng 1
Bình luận (0)