👤
a fost răspuns

0,8×(2/3+0,75)+3:(7,5-3)

Răspuns :

Anonim527
2/3=0.66
0.66+0.75=1,41
7.5-4=4,5
3:4,5=0.66
0.8×1.41=1.12
1.12+0.66=1.78
2/3+75/100=2/1+25/100=1/1+25/50=1/1+5/10=1/1+1/2=2/2+1/2=3/2
8/10*3/2=24/20=12/10=6/5
7,5-3=4,5
75/10-60/20=150/20-60/20=90/20=9/2
60/20:9/2=30/20:9/1=20/30*9/1
180/30=18/3=6/1
Deci o sa fie egal cu 6

Alte intrebari