Question

Oblicz
4 1/3+2 2/5=
3 7/10-2 3/5=
4 1/5-2 3/7=
1 1/2÷2 2/3=
3 3/4:2 1/5=
4/7:2/5=​

Answer 1

Odpowiedź:

 4 i 1/3 + 2 i 2/5= 4 i 5/15 + 2 i 6/15= 6 i 11/15

  3 i 7/10   - 2 i 3/5= 3 i 7/10- 2 i 6/10= 1 i 1/10

 4 i 1/5 - 2 i 3/7= 4 i 7/35 - 2 i 15/35= 3 i 42/35- 2 i 15/35= 1 i 27/35

1 i 1/2 : 2 i 2/3= 3/2 : 8/3= 3/2 * 3/8=  9/16

3 i 3/4 : 2 i 1/5= 15/4 : 11/5= 15/4 * 5/11 =  75/44=  1 i 31/44

  4/7 : 2/5= 4/7 *5/2  ( skracamy  4 i 2 przez 2)= 2/7*5= 10/7= 1 i 3/7

Szczegółowe wyjaśnienie:

Answer 2

Odpowiedź:

4 i 1/3 + 2 i 2/5 = 4 i 5/15 + 2 i 6/15 = 6 i 11/15

3 i 7/10 - 2 i 3/5 = 3 i 7/10 - 2 i 6/10 = 1 i 1/10

4 i 1/5 - 2 i 3/7 = 4 i 7/35 - 2 i 15/35 = 3 i 42/35 - 2 i 15/35 = 1 i 27/35

1 i 1/2 : 2 i 2/3 = 3/2 * 3/8 = 9/16

3 i 3/4 : 2 i 1/5 = 15/4 : 11/5 = 15/4 * 5/11 = 75/44 = 1 i 31/44

4/7 : 2/5 = 4/7 * 5/2 = 10/7 = 1 i 3/7