Question

Por favor urgente!!!!! Calcule as frações: a)3/2 + 2/3 =. b)2/7 + 1/7 =. c)2/3 - 1/4 =. d)4/5 - 1/5 =. e)7/5 - 4/5 =. f)1/5 + 2/5 =. g)7/12 + 5/18 =. h)1/2 + 1/6 + 5/6 =. i)9/5 - 6/5 =. j)3/2 - 2/3 =. l)1/1 + 9/9 =. m)8/7 - 5/7 =

Answer 1

a)3/2+2/3= 1,5+0,66= 2,16 ou 3/2+2/3=(3x3+2x2)/6=13/6
b)2/7+1/7= 3/7
c)2/3-1/4= (2x4-1x3)/12= 5/12
d)4/5-1/5=3/5
e)7/5-4/5= 3/5
f)3/5
g)7/12+5/18=(7x3+5x2)/36=31/36
h)1/2+1/6+5/6=(1x3+1+5)/6=9/6=3/2
i)3/5
j)3/2-2/3=(3x3-2x2)/6=5/6
l)2
m)3/7