Question

calcule e simplifique os resultados

a) 3/4 + 5/4 - 1/4=
b) 9/7 - 3/7 + 1/7=
c) 1/2 + 2/3=
d) 1/2 - 1/4=
e) 9/2 + 7/4 + 2/5=
f) 8/10 - 1/5=
g) 5/4 - 1/2=
h) 2/5 + 1=

URGENTE PRA AMANHÃ

Answer 1

a)
$\frac{3 + 5 - 1}{4}$

$\frac{7}{4}$

b)
$\frac{9 - 3 + 1}{7}$

${\frac{7}{7}}^{\div7}$

$1$

c)
$\frac{3}{6} - \frac{4}{6}$

$\frac{3 - 4}{6}$

$\frac{-1}{6}$

d)
$\frac{2}{4} - \frac{1}{4}$

$\frac{2 - 1}{4}$

$\frac{1}{4}$

e)
$\frac{90}{20} + \frac{35}{20} + \frac{8}{20}$

$\frac{90 + 35 + 8}{20}$

$\frac{133}{20}$

f)
$\frac{8}{10} - \frac{2}{10}$

$\frac{8 - 2}{10}$

${\frac{6}{10}}^{\div2}$

$\frac{3}{5}$

g)
$\frac{5}{4} - \frac{2}{4}$

$\frac{5 - 2}{4}$

$\frac{3}{4}$

h)
$\frac{2}{5} + \frac{1}{1}$

$\frac{2}{5} + \frac{5}{5}$

$\frac{2 + 5}{5}$

$\frac{7}{5}$