Question

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

1 - (3/4 ) do potęgi 2 =

1 + 3/7 : 1/7 =

( 0,6 + 0,9 ) : 3 =

10 x ( 05 + 1/4 ) =

0,3 + 0,5 x 4 =

proszę rozpisane , nie tylko wyniki

z góry dziękuję < 333333333333333333

Answer 1

( 3/4 - 1/5 ) : 1/2 =(15/20-4/20)*2=11/20*2=11/10=1 i 1/10=1.1

1 - (3/4 ) do potęgi 2 =1-9/16=16/16-9/16=7/16

1 + 3/7 : 1/7 =1+3/7*7/1=1+3=4

( 0,6 + 0,9 ) : 3 =1.5*1/3=3/2*1/3=1/2=0.5

10 x ( 05 + 1/4 ) =10 x (2/4+1/4)=10 x 3/4=15/2=7.5

0,3 _ 0,5 x 4 =0.3-2=-1.7

Answer 2

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

1 - (3/4 ) do potęgi 2 = 1 - 9/16 = 7/16

1 + 3/7 : 1/7 =1 + 3/7 * 7/1 = 1+3 = 4

(0,6 + 0,9 ) : 3 =(6/10+9/10):3 = 15/10 : 3 = 15/10 * 1/3 = 5/10 = 1/2

10 x ( 05 + 1/4 ) = 10 * ( 5/10 + 1/4)=10*(10/20+5/20)=10*15/20 = 15/2 = 7 1/2

0,3 _ 0,5 x 4 =0,30-2 = - 1 ,70

Answer 3

( 3/4 - 1/5 ) : 1/2 =
= ( 0,75 - 0,2) : 0,5 =
= 0,5 : 0,5 =

= 1
===========================

1 - (3/4 ) do potęgi 2 =
= 1 - 9/16 =

= 16/16 - 9/16 =
= 7/16
===========================

1 + 3/7 : 1/7 =
= 1 + 2/7 * 7 =
= 1 + 3 =
= 4
===========================

( 0,6 + 0,9 ) : 3 =
= 1,5 : 3 =
= 0,5

===========================

10 x ( 05 + 1/4 ) =
= 10 x ( 0,5 + 0,25) =
= 10 x 0,75 =
= 7,5
===========================

0,3 + 0,5 x 4 =
= 0,3 + 2 =
= 2,3
===========================