Question

Oblicz:

a)(3/4-1/5):1/2

b)3,2:(0,8-2/5)

c)2/3*(1/2-1/6)

d)4,8+1/3*(1,2-0,6)

e)(1-7/9)*(5,2-0,7)

f)123:10+0,2*6,1

g)(6,5-4,7):(4-2 1/5)

h)(1,5-1 1/3)*2 2/5-0,1

i)(6,25-2 1/2):2 1/7-1

Answer 1

a)(3/4-1/5):1/2=(15/20-4/20):1/2=11/20:1/2=11/20*2/1=11/10=1¹₁₀

b)3,2:(0,8-2/5)=3,2:(4/5-2/5=3,2:2/5=3¹₅:²₅=16/5*5/2=8

c)2/3*(1/2-1/6)=2/3*(3/6-1/6)=2/3*2/6=2/6=1/3

d)4,8+1/3*(1,2-0,6)=4⁴₅+1/3*0,6=4⁴₅+2/10=4⁸₁₀+2/10=4¹⁰₁₀=5