Respostas
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3
a) 1 + 2 5 6 11
--- --- = ----- + ------ = ------
3 5 15 15 15
b) 8 + 72 24 216:3 72
----- + ----- = ----- + ------ = ------
15 5 15 15:3 5
15,5/3
5,5/5
1,1=3.5=15
c) 4 x 13 16 15 240:6 40:5 8:4 2
---- x ------ = ------ x ------- = ------- = ------- = ------ = -----
30 8 120 120 120:6 20:5 4:4 1
30,8/2
15,4/2
15,2/2
15,1/3
5,1/5
1,1=2³.3.5=120
d) 112 2 336 2 334
----- - ----- = ----- - ----- = ------
3 9 9 9 9
3,9/3
1,3/3
1,1=3.3=9
e) 135 : 5 945 40 23,625
------ : ----- = ------ : ------ = ----------
8 7 56 56 56
8,7/2
4,7/2
2,7/2
1,7/7
1,1=2³.7=56
--- --- = ----- + ------ = ------
3 5 15 15 15
b) 8 + 72 24 216:3 72
----- + ----- = ----- + ------ = ------
15 5 15 15:3 5
15,5/3
5,5/5
1,1=3.5=15
c) 4 x 13 16 15 240:6 40:5 8:4 2
---- x ------ = ------ x ------- = ------- = ------- = ------ = -----
30 8 120 120 120:6 20:5 4:4 1
30,8/2
15,4/2
15,2/2
15,1/3
5,1/5
1,1=2³.3.5=120
d) 112 2 336 2 334
----- - ----- = ----- - ----- = ------
3 9 9 9 9
3,9/3
1,3/3
1,1=3.3=9
e) 135 : 5 945 40 23,625
------ : ----- = ------ : ------ = ----------
8 7 56 56 56
8,7/2
4,7/2
2,7/2
1,7/7
1,1=2³.7=56
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