Предмет: Математика, автор: ВикторияГригорьева1

Решите быстрей!Зарание спасибо!

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Автор ответа: KEYAM
0
(31/12 + 7/4 )* 1/13+5/2:15/4
13/3*1/13+5/2*4/15
1/3+2/3 = 1
Если что-то не понятно могу всё объяснить. 
Автор ответа: KEYAM
0
1. Надо представить смешанную дробь в виде неправильной.
Автор ответа: KEYAM
0
2. Сложить дроби
Автор ответа: KEYAM
0
3.сократить числа 13
Автор ответа: KEYAM
0
Потом просто все сложить.
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a.      not for work but to use at home for email and other domestic purposes.

b.     for games

c.      only for copying, typing

2.     How televisions have changed (became)?

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a.      to be sure

b.     to keep in touch

c.      not to lose touch with the office

5.     It also allows people___________ without the embarrassment of face to face contact.

a.      to listen to each other

b.     to ask each other out

c.      to write to each other 

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a.      same

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Предмет: Математика, автор: сашуля78945