Question

bom noitii me ajudem!
Calcule os exercícios sobre soma de frações a seguir:
a)3/5+8/5=
b)1/3+3/2=
c)23/9+30/3=
d)2/3+3/5+5/7=
e)12/5+3/7=
f)3/5+6/7+5/7+8/3=​

Answer 1

Resposta:

$a \: \frac{3}{5} + \frac{8}{5} = \frac{12}{5}$

$b \: \frac{1}{3} + \frac{3}{2} = \frac{2}{6} + \frac{9}{6} = \frac{11}{6}$

$c \: \frac{23}{9} + \frac{30}{3} = \frac{23}{9} + \frac{90}{9} = \frac{113}{9}$

$d \: \frac{2}{3} + \frac{3}{5} + \frac{5}{7} = \frac{140}{210} + \frac{126}{210} + \frac{150}{210} = \frac{416}{210}$

$e \: \frac{12}{5} + \frac{3}{7} = \frac{84}{35} + \frac{15}{35} = \frac{99}{35}$

$f \: \frac{126}{210} + \frac{180}{210} + \frac{150}{210} + \frac{560}{210} = \frac{1016}{210}$

Espero ter ajudado você