Question

calcule
(-2/4). (+5/3)
2/3.8/7
15/8:(-3/4)
(-42/13).(-7/26)
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Answer 1

Olá boa tarde!

Veja a resolução abaixo:

(-2/4) × (+5/3)=

-2/4 × 5/3

-1/2 × 5/3

-5/6

______________•_____________

2/3 × 8/7=

2×8/3×7

16/3×7

16/21

______________•______________

15/8 ÷ (-3/4)=

-15/8 ÷ 3/4

-15/8 × 4/3

-5/8 × 4

-5/2

espero ter ajudado, bons estudos ;)