Question

0,6:2/3=?

2 3/20+1,27=?

0,65:6 1/2=?

4,5-3/4*1/3=?

(1 2/5+0,5):2=?
2
5/8*4,2-(1/4) =?

4/7*(o,2+1/4)=?

PROSZE WAS SZYBKO BO TO NA JUTRO JAK COS ZLE NAPISALAM TO PISAC NA WIADOMOSC.

Answer 1

0,6:2/3=6/10*3/2=9/10
2 3/20+1,27=2 3/20+1 27/100=2 15/100+1 27/100=3 42/100=3 21/50
0,65:6 1/2=0,65:6,5=0,1
4,5-3/4*1/3=4,5-1/4=4,5-0,25=4,25
(1 2/5+0,5):2=(1,4+0,5):2=1,9:2=0,95
5/8*4,2-(1/4) =0,625*4,2-(0,25)=2,625-0,25=2,375
4/7*(o,2+1/4)=4/7*(1/5+1/4)=4/7*(4/20+5/20)=4/7*9/20=9/35

Answer 2

0,6:2/3=0,9
2 3/20+1,27= 43/20 +1,27=2,15+1,27=3,42
0,65:6 1/2=0,65: 6,5= 0,1
4,5-3/4*1/3=4,5- 3/12= 45/10-3/12=270/60-15/60= 255/60
(1 2/5+0,5):2= 1,4:2= 0,7
5/8*4,2-(1/4)=21/8-1/4=21/8-2/8=19/8
4/7*(o,2+1/4)=4/7*0,45=9/35

Answer 3

0/6:2/3=6/10:2/3=6/10*3/2=9/10=0,9

2 3/20+1.27=43/20+127/100=215/100+127/100=342/100=3,42

0,65:6 1/2=65/100:13/2=65/100*2/13=65/650=0,1

4,5-3/4*1/3=45/10-1/4=9/2-1/4=18/4-1/4=17/4=4,25

(1 2/5+0,5):2=(7/5+1/2)*1/2=(14/10+5/10)*1/2=
19/10*1/2=19/20=0,95

5/8*4,2-(1/4) =5/8*42/10-(1/4)=21/8-1/4=21/8-2/8=19/8=2,375

4/7*(0,2+1/4)=4/7*(1/5+1/4)=4/7*(4/20+5/20)=4/7*9/20=9/35