Question

15. Calculați cât mai simplu folosind proprietăţile adunării: DAU COROANA ​

Answer 1

Răspuns:

a.5/16+⁸⁾3/2+3/16= 5/16+24/16+3/16=32/16=2

b.⁵⁾3/4+5/20=15/20+5/20=20/20=1

c. 6/21+⁷⁾1/3+8/21=21/21=1

d. 4/10+²⁾4/5=4/10+8/10=12/10=6/5

e. 8/8+18/18=1+1=2

Answer 2

Răspuns:

Explicație pas cu pas:

a)

5/16+3/16+3/2

=8/16+⁸⁾3/2

=(8+24)/16

=32/16

=2

-

b)

⁵⁾3/4+5/20

= 15/20+5/20

=20/20

=1

-

c)

6/21+6/21+1/3

=12/21+⁷⁾1/3

=12/21+7/21

= 19/21

-

d)

3/10+1/10+1/5+1/5

=4/10+²⁾2/5

=4/10+4/10

= 8/10

-

e)

5/8+3/8+7/18+11/18

= 8/8+18/18

= 1+1

=2