Question

2/3+0,6=
4,2-1 1/9
3,6-1 1/2
2 1/3 : 0,8=
5,2x 2/7
0,6:2/3
2 3/20+1,27
o,65:6 1/2
4,5-3/4x1/3
( 2/5+0,5):2
5/8x4,2-(1/4) do potęgi 2. xd
4/7x(0,2+1/4)
x= razy .! ;p

z działaniami proszę!

Answer 1

2/3+0,6 = 2/3+6/10 = 20/30+18/30 = 38/30 = 1 i 8/30 = 1 i 4/15

 

4,2- 1i1/9 = 4 i2/10 -1 i 1/9 = 4 18/90 - 1 i 10/90 = 3 i 8/90 = 3 i 4/45

3,6 - 1 i1/2 = 3,6 -1,5 = 2,1

2 i1/3 :0,8 = 7/3:8/10 = 7/3 * 10/8 = 70/24 = 2 i 22/24 = 2 i 11/12

5,2*2/7= 52/10*2/7 = 104/70 = 1 i 34/70 = 1 i 17/35

0,6:2/3 = 6/10 *3/2 = 18/20 = 9/10 lub 0,9

2 i3/20 +1,27 = 2,15 + 1,27 = 3,42

0,65:6,5 = 0,1

4,5 - 3/4*1/3 = 4,5 - 3/12=  = 4,5 - 0,25 = 4,25

(2/5+0,5 ) :2 = (0,4+0,5):2 = 0,9 :2 = 0,45

5/8*4,2-(1/4)do2 ( nie wiem co to xd

4/7*(0,2+1/4) = 4/7 *(0,2 + 0,25)= 4/7 * 0,45 = 4/7*45/100 = 180/700=18/70

 

5/8*4,2-(1/4) do2= 0,625 *4,2-(1/16)=2,625 -0,0625 = 2,5625