Question

EFETUE= me ajudem porfavor é pra amanha cedo entregar
a)1\2 +2\4=
b)3\5 + 1\10 =
c)2\3 x 1\4=
d)4\5 x 2\6=
e)4\ : 2\6=
f)1\5 : 2\3=

Answer 1

$a) \ \frac{1}{2}+\frac{2}{4}=\frac{1}{2}+\frac{1}{2}=1\\ \\ b) \ \frac{3}{5}+\frac{1}{10}=\frac{6+1}{10}=\frac{7}{10}\\ \\ c) \ \frac{2}{3}*\frac{1}{4}=\frac{2}{12}=\frac{1}{6}\\ \\ d) \ \frac{4}{5}*\frac{2}{6}=\frac{8}{30}=\frac{4}{15}\\ \\ e) \ 4\div \frac{2}{6}=4*\frac{6}{2}=\frac{24}{2}=12\\ \\ f) \ \frac{1}{5} \div \frac{2}{3}=\frac{1}{5}*\frac{3}{2}=\frac{3}{10}$

Answer 2

a) 1/2 + 2/4  =    mmc entre 2 e 4 = 4
      2/4 +2/4 = 4/4 = 1

b) 3/5 + 1/10   mmc entre 5 e 10 = 10

6/10 + 1/10 = 7/10  (c)

d) 4/5 . 2/6 = 8/30 = 4/15

e) 4 : 2/6 =
4/1 * 2/6 = 24/2 = 12/1 = 12

f) 1/5 : 2/3
    1/5 * 3/2 = 3/10