Question

a=5/3-3/7 si b=1/3+3/7 media aritmetica

Answer 1

a=5/3-3/7
a= 5/3 ( amplifici cu 7) - 3/7 ( amplifici cu 3)
a=35/21- 9/21
a=26/21

b=1/3+3/7
b=1/3 ( amplifici cu 7)+ 3/7 (amplifici cu 3)
b=7/21+ 9/21
b=16/21

M (indice) a= a+b/2
M ( indice) a= 26/21+16/21 // 2
M ( indice) a= 42/21 //2
M (indice) a= 2/2
M ( indice) a= 1

// = linie mare de fractie

ex: 26 16 42 =) exercitiul tau (=
-- + -- -----
21 21 21 2
________ = _________ = ____ = 1
2 2 2

Sper ca te-am ajutat... coronita?