Question

Oblicz ułamki :

1. 8/3+4/33+6/11-3/2

2. 2 ⅔+2/6+3/8-3/10

3. 1⅓- 1 ²/₁₁ + ⁴/₁₂

4.-3/2-5/12-2/3

5.9/8+8/9+5/4-4/5

6.4/3+2/33+3/11-1/2

7.1⅓+1/6+2/8-4/10

8.3⅔-2¹/₁₁+3/12

9.-1/2-3/12-1/3

10.7/8+8/7+4/3-3/4

P.S: jak powiększycie rozdzielczość monitora to będziecie lepiej widzieć cyfry ;)

Answer 1

Oblicz ułamki :

1. 8/3+4/33+6/11-3/2 =

= 176/66 + 8/66 + 36/66 - 99/66 =

= 121/66 =

= 11/6=

=  1 i 5/6

 

2. 2 ⅔+2/6+3/8-3/10 =

=  8/3 + 2/6 +3/8 - 3/10 =

= 320/120 + 40/120 + 45/120 - 36/120 =

= 369/120 =

= 123/40

 

3. 1⅓- 1 ²/₁₁ + ⁴/₁₂=

= 4/3 - 13/11 + 1/3 =

= 5/3 -13/11=

= 55/33 - 39/33 =

= 16/11

 

4.-3/2-5/12-2/3=

= -36/24 - 10/24 - 16/24 =

= 62/24 =

= 31/12 =

= 2 i 7/12

 

5.9/8+8/9+5/4-4/5 =

= 405/360 + 320/360 + 450/360 - 288/360 =

= 887/360

 

6.4/3+2/33+3/11-1/2 =

=  88/66 + 4/66 + 18/66 - 33/66 =

= 77/66 =

= 7/6 =

= 1 i 1/6

 

7.1⅓+1/6+2/8-4/10=

= 4/3 + 1/6 + 1/4 - 2/5 =

= 240/180 + 30/180 + 45/180  - 72/180 =

= 243/180=

= 27/20 =

= 1 i 7/20

 

8.3⅔-2¹/₁₁+3/12 =

= 11/3 - 23/11 + 1/4 =

= 484/132 - 276/132 + 33/132 =

= 241/132 =

= 1 i 109/132

 

9.-1/2-3/12-1/3 =

= - 6/12 - 3/12 - 4/12 =

= -13/12 =

= -1 i 1/12

 

10.7/8+8/7+4/3-3/4=

=  147/168 + 192/168 + 224/168 - 126/168 =

= 437/168 =

= 2 i 101/168