Question

1. thực hiện pt

a, 5/9-1/6+1/3                     b, 1/8:9/12+1/3

c, 5/4x4/3x3/4                     d, 8/5x(3/7+1/4)

giải gúp mik vs

Answer 1

a, 5/9-1/6+1/3 =\(\dfrac{13}{18}\)                      b, 1/8:9/12+1/3=\(\dfrac{1}{2}\)

c, 5/4x4/3x3/4  = \(\dfrac{5}{4}\)                   d, 8/5x(3/7+1/4) =\(\dfrac{38}{35}\)

Answer 2

a)10/18-3/18+6/18

=13/18

b)1/8.12/9+1/3

=1/6+1/3

=1/6+2/6

=1/2

c)5.4.3/4.3.4=5/4

d)8/5.(12/28+7/28)

=8/5.19/28=38/35

Answer 3

a: \(\dfrac{5}{9}-\dfrac{1}{6}+\dfrac{1}{3}=\dfrac{13}{18}\)

b: \(\dfrac{1}{8}:\dfrac{9}{12}+\dfrac{1}{3}=\dfrac{1}{2}\)

c: \(\dfrac{5}{4}\cdot\dfrac{4}{3}\cdot\dfrac{3}{4}=\dfrac{5}{4}\)

d: \(\dfrac{8}{5}\left(\dfrac{3}{7}+\dfrac{1}{4}\right)=\dfrac{38}{35}\)

Answer 4

khó quá anh ui