Question

Answer 1

bài 1:

a.9

b.0

nếu co gì sai mong bạn thông cảm

 

Answer 2

a. \(\dfrac{27}{15}-\dfrac{18}{15}=\dfrac{9}{15}=\dfrac{3}{5}\)

b. \(\dfrac{1}{2}+\dfrac{1}{6}-\dfrac{2}{3}=\dfrac{3+1-4}{6}=\dfrac{0}{6}=0\)

Answer 3

a)\(\dfrac{27}{15}-\dfrac{18}{15}=\dfrac{27-18}{15}=\dfrac{9}{15}=\dfrac{3}{5}\)

b)\(\dfrac{1}{2}+\dfrac{1}{6}-\dfrac{2}{3}=\dfrac{3}{6}+\dfrac{1}{6}-\dfrac{4}{6}=\dfrac{3+1-4}{6}=0\)

Answer 4

a. \(\dfrac{27}{15}-\dfrac{18}{15}\) = \(\dfrac{27-18}{15}\) = \(\dfrac{9}{15}\) = \(\dfrac{3}{5}\)

b. \(\dfrac{1}{2}+\dfrac{1}{6}-\dfrac{2}{3}=\dfrac{3}{6}+\dfrac{1}{6}-\dfrac{4}{6}=\dfrac{3+1-4}{6}=\dfrac{0}{6}=0\)

Answer 5

1. Thực hiện các phép tính sau:

a) 27/15 - 18/15 = 27-18/15 = 9/15

b) 1/2 + 1/6 - 2/3 = 3/6 + 1/6 - 4/6 = 4/6 - 4/6 = 0

Thông cảm, máy ko đánh đc phân số. Bạn tự hiểu nhé! :D

Answer 6

a: \(\dfrac{27}{15}-\dfrac{18}{15}=\dfrac{27-18}{15}=\dfrac{9}{15}=\dfrac{3}{5}\)

b: \(\dfrac{1}{2}+\dfrac{1}{6}-\dfrac{2}{3}=\dfrac{3+1-4}{6}=0\)