Question

Gente resolva as operações pfv eu não tô entendendo direito entendeu

Answer 1

a)
2/3+3/4=

mmc=12

[(4x2)+(3x3)]:12=

[8+9]:12=

17/12=

1 5/12


b)
5/6+3/2=

mmc=12

[(2x5)+(3x6)]:12=

[10+18]:12=

28/12=

14/6=

7/3

c)
1/4:5/2=
1/4 x2/5=
2/20=
1/10

d)
8/7.9/6=
(8x9)(7x6)=
72/42=
36/21=
12/7=
1 5/7