Question

A 6,5 : ( 2 całe 1 4 * 6 -0,5 b (5-1cała 1 2):( 2 całe 3 8 -1 ,75) c 3 całe 3 4 * 0, 8 + 2 całe 2 3 * 0,3 d 5 7 * 4, 2 - (1 cała 1 4-0,5 ) e 4 całe 1 2 - 2,4 : 2 całe 2 3 + 1,4

Answer 1

6,5:(2i1/4*6-0,5)=6i5/10:(9/4*6-5/10)-65/10:(135/10-5/10)=65/10*10/130=1

(5-1i1/2):(2i3/8-1i75/100)=(4i2/2-1i1/2):(2i3/8-1i75/100)=3i1/2:(2i375/1000-1i750/1000)=7/2:1i1375/1000-1i750/1000=7/2*4/5=28/5=3i3/5

3i3/4*0,8+2i2/3*0,3=15/4*8/10+8/3*3/10=6/2+4/5=30/10+8/10=38/10=3i4/5

5/7*4,2-(1i1/4-0,5)=5/7*4/10-(1i1/4-5/10)=3-(1i5/20-10/20)=3-25/20-10/20=3-15/20=2i20/20-15/20=2i5/20=2i1/4

4i1/2-2,4:2i2/3+1/4=9/6-24/10*3/8+1/4=9/6-9/10+1/4=90/60-54/60+15/60=51/60