Question

Dê o valor das expressões numéricas. a2/3 x 3/5 + 7/8. b2 - (5/4 - 3/8)​

Answer 1

Oie, Td Bom?!

a)

= 2/3 . 3/5 + 7/8

= 2 . 1/5 + 7/8

= 2/5 + 7/8

= [16 + 35]/40

= 51/40

b)

= 2 - (5/4 - 3/8)

= 2 - ([10 - 3]/8)

= 2 - 7/8

= [16 - 7]/8

= 9/8

Att. Makaveli1996