Question

Efetue as adições e subtracoes e e expressões 7/4 2/3=(R:29/12) tira o MMC

Answer 1

Olá, bom dia!

$\dfrac{7}{4}+\dfrac{2}{3}=$

MMC (4, 3)

4, 3 l 2
2, 3 l 2
1, 3 l 3
1, 2

2 • 2 • 3 = 12

$\dfrac{12\div4\cdot7}{12}+\dfrac{12\div3\cdot2}{12}=\\\\\dfrac{21}{12}+\dfrac{8}{12}=\\\\\boxed{\dfrac{29}{12}}$



Espero ter ajudado.
Bons estudos!