Question

Matematyka klasa 7 oblicz na dziś ​

Answer 1

A) 0,2 • 1/8 = 2/10 • 1/8 = 1/40
B) 1 1/3 • 2,7 = 4/3 • 27/10 = 18/5 = 3 3/5
C) 1 1/3 • 3 3/4 • 0,2 = 4/3 • 15/4 • 2/10 = 1
D) 3/4 : 0,0375 = 3/4 : 375/10000 = 3/4 • 10000/375 = 250/125 = 2
E) 0,48 : 1 1/7 = 48/100 : 8/7 = 48/100 • 7/8 = 42/100 = 21/50
F) 3 7/9 / 1,7 : 2 = 34/9 / 17/10 : 2 = 34/9 : 17/10 : 2 = 34/9 • 10/17 : 2 = 20/9 : 2 = 20/18 = 1 2/18 = 1 1/9
G) (2 2/11 : 8/3) • 0,11 = (24/11 • 3/8) • 11/100 = 9/11 • 11/100 = 9/100
H) 1,8 : (1 1/3 • 6 3/4) = 18/10 : (4/3 • 27/4) = 18/10 : 9 = 2/10
I) (2 1/7 : 5/14) : 0,6 = (15/7 : 5/14) : 6/10 = 15/7 • 14/5 : 6/10 = 6 : 6/10 = 10