Question

Efetue as subtraçoes

a)5/4 - 1/2

b)3/5 - 2/7

c)8/10 - 1/5

d)5/6 - 2/3

e)4/3 - 1/2

f)13/4 - 5/6

g)7/8 - 1/6

h)5/4 - 1/2

Answer 1

mesma coisa da adição,sendo que subtrai os valores

 

5/4 - 1/2 = (5-2)/4 = 3/4

 

3/5 - 2/7 = (21-10)/35 = 11/35

 

8/10 - 1/5 = (8-2)/10 = 6/10 = 3/5

 

5/6 - 2/3 = (5-4)/6 = 1/6

 

4/3 - 1/2 = (8-3)6 = 5/6

 

13/4 - 5/6 = (39-10)/12 = 29/12

 

7/8 - 1/6 = (21-4)/24 = 17/24

 

5/4 - 1/2 = (5-2)/4 = 3/4

 

não deu pra fazer organizado que nem o outro,mas acho que dá pra entender 

Answer 2

$<var>a) \frac{5}{4} - \frac{1}{2} = \frac{5-2}{4} = \frac{3}{4}</var>$

 

$<var>b) \frac{3}{5} - \frac{2}{7} = \frac{21-10}{35} = \frac{11}{35}</var>$

 

$<var>c) \frac{8}{10} - \frac{1}{5} = \frac{8-2}{10} = \frac{6}{10} </var>$

 

$<var>d) \frac{5}{6} - \frac{2}{3} = \frac{5-4}{6} = \frac{1}{6} </var>$

 

$<var>e) \frac{4}{3} - \frac{1}{2} = \frac{8-3}{6} = \frac{5}{6} </var>$

 

$<var>f) \frac{13}{4} - \frac{5}{6} = \frac{39-10}{12} = \frac{29}{12} </var>$

 

$<var>g) \frac{7}{8} - \frac{1}{6} = \frac{21-4}{24} = \frac{17}{24}</var>$

 

$<var>h) \frac{5}{4} - \frac{1}{2} = \frac{5-2}{4} = \frac{3}{4}</var>$