Question

oblicz. pamietajac o skracaniu.

a)10 x 7/12 =

b)9 x 5/21 =

c)5/18 x 12 =

d) 8/21 x 9 =

zad 2 wykonaj obliczenia , postaraj sie to zrobic w najprostszy sposob

a)8 1/7 + 7 8/9 + 2 2 /18 =

b)4 5/6 + 9 5/8 + 7 3/18 =

c)11 5/8 - 5 35/56 - 3 5/9 =

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

daje naj :D

Answer 1

a) 70/12=5 i 5/6

b) 45/21= 2 i 1/7

c) 5/3 * 2= 10/3 = 3 i 1/3

d) 72/21 = 3 i 9/21= 3 i 3/7

 

zad.2

a) 8/7 + 56/9 + 4/18 = 1 i 47/81

b) 20/6 + 45/8 + 21/18 = 5+ 5/4 + 14\4=10 i 1/4