Question

Resolva as equações com fração:
a) 1/4 x = 3/5
b) 2a = 2/3
c) 8/4 r + 1/4 =8
d) 5/3 m = 3 ÷ 3/5​

Answer 1

a) 1/4 × x = 3/5

x/4 = 3/5

x = (4 × 3)/5

x = 12/5

b) 2 × a = 2/3

a = (2×2)/3

a = 4/3

c) 8/4 × r + 1/4 = 8

8r/4 + 1/4 = 8

(8r + 1)/4 = 8

8r + 1 = 8 × 4

8r = 32 - 1

r = 31/8

d) 5/3 × m = 3 ÷ 3/5

5m/3 = 3 × 5/3

5m/3 = 15/3

m = 15/5

m = 3

espero que tenha ajudado!