Question

4 5/9 + 2⅓ × 4½ =

5 1/7 × 1 4/9 - 6÷4⅔ =

3½ × ( 2¼ - 1½ ÷ 6 ) =

5 2/9 - 1 1/6 ÷3 ⅔× (1¼-½) =

Daje naj! Pline!

Answer 1

4 5/9 + 2⅓ × 4½ =4 5/9+2 3/9x4 1/2=6 8/9x4 1/2=6 16/18 x 4 9/18=31

Answer 2

a) =15 i 1/18

b) =6 1/7

c) = 7

d) = 4,9

Answer 3

4 5/9 + 2⅓ × 4½ =4i5/9+7/3·9/2=4i5/9+21/2=4i5/9+10i1/2=4i10/18+10i

9/18=14i19/18=15i1/18

 

 

5 1/7 × 1 4/9 - 6÷4⅔ =36/7·14/9-6÷14/3=8-6·3/14=8-9/7=7i7/7-1i2/7=6i5/7

 

3½ × ( 2¼ - 1½ ÷ 6 ) =7/2·(2¼-3/2·⅙)=7/2·(2¼-¼)=7/2·2=7 przy mnożeniu skracamy na ukos

5 2/9 - 1 1/6 ÷3 ⅔× (1¼-½) =5i2/9-7/6÷11/3·(1¼-2/4)=5i2/9-7/6÷11/3·3/4=

5i2/9-7/6÷11/4=5i2/9-7/6·4/11=5i2/9-14/33=5i22/99-42/99=

4i121/99-42/99=4i79/99