Question

EX: 3pg 110

calculeaza si scrie rezultatul sub forma de fracti zecimala
a)(2 supra 3 -1supra 2)+3supra4
b)5supra6+(1-3supra4)
c)1supra3-[5supra 6-1supra]
d)1-[2supra5+1supra10]+3supra10 ​

Answer 1

Răspuns:

a)(4/6-3/6)+3/4=1/6+3/4=4/24+18/24=22/24=0,91(6)

b)5/6+(1/1-3/4)=5/6+(4/4-3/4)=5/6+1/4=20/24+6/24=26/24=1,08(3)

c)nu îl știu

d)1/1-(4/10+1/10)+3/10=1/1-5/10+3/10=10/10-5/10+3/10=8/10

Explicație pas cu pas:

unde am schimbat numerele am amplificat