Question

va roggg doar abc va roggg​

Answer 1

Răspuns:

1.

2/1×1/5=2/5

5/1×1/4=5/4

12/1×3/5=36/5

2.

a) 5×21/3=105/3

5×(10/3+11/3)=5×21/3=105/3

b) 7×31/4=217/4

7×(15/4+16/4)=7×31/4=217/4

c) 81/3×5=405/3

81/3×5=9×9/3×5=81/3×5=405/3

3.

15/7×1/18=15/126

1/9×3/10=3/90³=1/30

4/5×9/8=36/45

Answer 2

Răspuns:

1. 2 x 1 / 5 = 2/ 5

5 x 1 / 4 = 5/ 4

12 x 3 / 5 = 36/5

2. 5 x (2 x 3 + 1)= 5 x 7 = 35

   7 x 13 =  91

   25 x 5 = 125

3. 15/126

    1 x 3 / 9 x 10 = 3/90

     36/40

Sper ca ai inteles si am ajutat!!!!! :)