Question

[Huỳnh Thị Cẩm Tuyên]

1)Tìm x biết :/ x+\(\frac{1}{3}\)-4=-1

Bai naycac ban giai giup minh voi

2)tinh (\(\frac{2}{25}\)-1,008):\(\frac{4}{7}\):(\(\frac{13}{4}\)-\(6\frac{5}{9}\))*\(\frac{36}{17}\)

3)so sanh: \(\sqrt{21}\)+\(\sqrt{8}\)va 3+\(\sqrt{3}\)

Answer 1

[Hoàng Thị Ngọc Anh]

x+1/3-4=-1

=>x+1/3=-1+4

=>x+1/3=3

=>x =3-1/3

=>x =8/3

Vậy x = 8/3

Answer 2

[Hoàng Thị Ngọc Anh]

(2/25-1,008):4/7:(13/4-6/5/9)*36/17

=(2/25-126/125).7/4:(13/4-59/9)*36/17

=(10/125-126/125).7/4:(117/36-236/36)*36/17

=-116/125.7/4.(-36/119).36/17

=-203/125.(-1296/2023)=263088/252875

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