marizafigueiredo62 24/06/2022 Resposta:a) 13/7; b) 6.23; c) -5/7; d) -2.91; e) -27/5; f) 1/14; g) -5/66; h) 20/21.Explicação passo a passo:a) 3/7 + 10/7 =13/7.b) 2,45 +3,78 6,23c) - 8/7 + 3/7 =- 5/7.d) - 5,24 + 2,33 =-2,91.e) (9/5) . (-3/7) =- 27/35.f) (4/14) . (2/8) =8/112 = 1/14.g) (-5/3) : (11/5) =(-5/3) . (5/11) =- 25/330 = - 5/66.h) (4/3) : (7/5) =(4/3) . (5/7) =20/21.
marizafigueiredo62
Resposta:
a) 13/7; b) 6.23; c) -5/7; d) -2.91; e) -27/5; f) 1/14; g) -5/66; h) 20/21.
Explicação passo a passo:
a) 3/7 + 10/7 =
13/7.
b) 2,45
+3,78
6,23
c) - 8/7 + 3/7 =
- 5/7.
d) - 5,24 + 2,33 =
-2,91.
e) (9/5) . (-3/7) =
- 27/35.
f) (4/14) . (2/8) =
8/112 = 1/14.
g) (-5/3) : (11/5) =
(-5/3) . (5/11) =
- 25/330 = - 5/66.
h) (4/3) : (7/5) =
(4/3) . (5/7) =
20/21.