Question

a.2/3 + 7/9 - 5/6

b.3/4 x 5/6 ; 1/2

c. 10-1i 5/6x 4 1/2

d.1i 1/2 - 3/4+ 5/8

e. 7/9 ; 2/3 x 6/7

f.5/7 x 4 2/3 + 5/6 ; 1 1/9

g.1 1/5- 1/2 + 3/4 + 3/10

h.3 3/4 x 2 i 2/5- 4 i 3/8

i.2 i 1/4 i 1 i 2/3 ; 1/6 + 2/9

z boku

x=razy

/= kreska ułamkowa

; = podzielić

Answer 1

a)2/3 + 7/9 - 5/6=12/18+14/18-15/18=11/18

 

b)3/4 * 5/6 :1/2=15/24*2/1=30/24=1 1/4

c) 10-1 5/6* 4 1/2=10-11/6*9/2=10-99/18=10-5,5=4,5

d)1 1/2 - 3/4+ 5/8=12/8-6/8+5/8=11/8=1 3/8

e) 7/9 : 2/3 * 6/7=9/7*12/21=108/147

f)5/7 * 4 2/3 + 5/6 : 1 1/9=70/21+45/60=4200/1260+945/1260=5145/1260=

4 105/1260=4 21/252=4 1/12

g)1 1/5- 1/2 + 3/4 + 3/10=24/20-10/20+15/20+6/20=35/20=1 15/20=1 1/4

h)3 3/4 * 2  2/5- 4  3/8=15/4*12/5-35/8=180/20-35/8=360/40-140/40=220/40=

5 20/40=5 1/2

i)2  1/4 (brak znaku )  1 2/3 : 1/6 + 2/9 =????