Question

пж помогите решить пж ​

Answer 1

Пошаговое объяснение:

а)

15 3/4-(8 1/4-4 2/4+2)=

=15 3/4-(8 1/4-4 2/4+1 4/4)=

=15 3/4-((8-4+1)+(1/4-2/4+4/4))=

=15 3/4-((5+3/4))=15 3/4-5 3/4=(15-5)+(3/4-3/4)=

=10+0=10

б)

(3 3/14+1 11/14)+7 13/14-(5 5/14-2 6/14)=

=4 14/14+7 13/14-((5-2)+(5/14-6/14))=

=5+7 13/14-(3+(-1/14))=12 13/14-(3-1/14)=

=12 13/14-(2 14/14-1/14)=12 13/14-2 13/14=

=(12-2)+(13/14-13/14)=10+0=10

Answer 2

Відповідь:

а)

15 3/4-(8 1/4-4 2/4+2)=

=15 3/4-(8 1/4-4 2/4+1 4/4)=

=15 3/4-((8-4+1)+(1/4-2/4+4/4))=

=15 3/4-((5+3/4))=15 3/4-5 3/4=(15-5)+(3/4-3/4)=

=10+0=10

б)

(3 3/14+1 11/14)+7 13/14-(5 5/14-2 6/14)=

=4 14/14+7 13/14-((5-2)+(5/14-6/14))=

=5+7 13/14-(3+(-1/14))=12 13/14-(3-1/14)=

=12 13/14-(2 14/14-1/14)=12 13/14-2 13/14=

=(12-2)+(13/14-13/14)=10+0=1

Покрокове пояснення: