Question

a) 2 2/5 * 25/18
b) 9/11 : 2 5/2 * 2 3/4
c) 10 : 35/24 : 36/7
d) 10,77 * 9,8 + 5,23 * 9,8
e) 1,26 * 3,6 : 0,28 - 6,2

Giúp mình nhé

Answer 1

a) \(2\frac{2}{5}\cdot\frac{25}{18}=\frac{12}{5}\cdot\frac{25}{18}=\frac{300}{90}=\frac{10}{3}\)

b) \(\frac{9}{11}:2\frac{5}{2}\cdot2\frac{3}{4}=\frac{9}{11}.\frac{2}{9}\cdot\frac{11}{4}=\frac{1}{2}\)

c) \(10:\frac{35}{24}:\frac{36}{7}=10\cdot\frac{24}{35}\cdot\frac{7}{36}=\frac{4}{3}\)

d) \(10,77\cdot9,8+5,23\cdot9,8=9,8\cdot\left(10,77+5,23\right)=9,8\cdot16=156,8\)

e) \(1,26\cdot3,6:0,28-6,2=16,2-6,2=10\)

Answer 2

là sao hả cậu?