Question

Calcule mentalmente e escreva o resultado 3/4de 8 2/3de 6 5/7de21 3/5de 20

Answer 1

Resposta:

3/4de 8= 6

2/3de 6= 4

5/7de21= 15

3/5de 20= 12

Explicação passo a passo:

3/4de 8

8÷4= 2      

3x2=6

2/3de 6

6÷3=2

2x2=4

5/7de21

21÷7=3

5x3=15

3/5de 20

20/5= 4

3x4=12

Answer 2

Explicação passo a passo:

3/4de 8 = ( 3 * 8 )/4 = 24/4 = 6 >>>>

b

2/3de 6 = ( 2 * 6 )/3 =12/3 = 4 >>>>>

c

5/7de21 = ( 5 * 21 )/7 = 105/7 = 15 >>>>>

d

3/5de 20 = ( 3 * 20)/5 = 60/5 = 12 >>>>