Question

Efetue as Adiçoes

d)2/5 + 3/10

e)5/3 + 1/6

f)1/4 + 2/3 + 1/2

g)1/2 + 1/7 + 5/7

h)3/7 + 5/2 + 1/14

i)4/5 + 1/3 + 7/6

j)1/3 + 5/6 + 3/4

Answer 1

mesmo esquema do outro,tira o mmc e resolve
$<var>\frac{2}{5} + \frac{3}{10} = \frac{4+3}{10} = \frac{7}{10}</var>$

 

$<var>\frac{5}{3} + \frac{1}{6} = \frac{10+1}{6} = \frac{11}{6}</var>$

 

 

 

$<var>\frac{1}{4} + \frac{2}{3} + \frac{1}{2} = \frac{3+8+6}{12} = \frac{17}{12} </var>$

 

$<var>]\frac{1}{2} + \frac{1}{7} + \frac{5}{7} = \frac{7+2+10}{14} = \frac{19}{10}</var>$

 

 

$<var>\frac{3}{7} + \frac{5}{2} + \frac{1}{14} = \frac{6+35+1}{14} = \frac{42}{14} = \frac{7}{2} </var>$

 

 

$<var>\frac{4}{5} + \frac{1}{3} + \frac{7}{6} = \frac{24+10+35}{30} = \frac{69}{30} = \frac{23}{10}</var>$

 

$<var>\frac{1}{3} + \frac{5}{6} + \frac{3}{4} = \frac{4+10+9}{12} = \frac{23}{12} </var>$