1. Сравните дроби: 3/5 и 2/5 8/9 и 2/3 5/18 и 5/12 5/8 и 2/3 2. Расположите числа 1/4 1/3 1/7 1 в порядке возрастания Расположите числа 1/4 1/3 1/7 1 в порядке убывания 3. Укажите какую либо дробь большую 1/5 но меньшую 1/4 4.Натуральные числа a и b таковы что a/b < 1. Докажите что дробь a+b/2b больше дроби a/b.

Quotations and sayings are part of our language and our way of life. as the poet emerson said, we use -  them by necessity; to remind ourselves to look before we leap or to avoid crossing our bridges before we come up to them. we use them through habit, often not realizing we are doing so -, and we all love to use an apt quotation to enliven conversation or score a point in an argument. this booklet contains over -  a thousand quotations, proverbs and sayings. together, they offer a great deal of the information, advice, amusement and comfort. emerson wrote 'i hate quotations ' so it is doubtful that he would have -  used this book - but we hope that you will. whether you use it to improve your knowledge -, as the  aid to solving crossword puzzles, to enrich your own speech or simply for idle reading in your spare time, it will put you in -  touch with some of the cleverest minds of the past and -  present. happy reading and happy quoting!

1. 3/5> 2/5 8/9=2/3 5/12> 5/18 5/8 < 2/3 2. 1/7,1/4,1,3 3. 1/3,1/4,1/7

Из формулы S = v·t  выразим время:
              t = S:v

a) S=68 км; v = 17 км/ч.
    t = 68 км :  17 км/ч = 4 часа
Ответ: t=4 ч

б) S=220 км; v= 55 км/ч.
t = 220 км : 55 км/ч = 4 часа.
Ответ: t=4 ч

1. 2 целых 1/14 + 8 целых 12/35 = Домножаем 2 целых 1/14 на 5 и 8 целых 24/70 на 2 = 2 целых 5/70 + 8 целых 24/70 = 10 целых 29/70
2. 5 целых 8/35 + 7 целых 5/14 = Домножаем 5 целых 8/35 на 2 и 7 целых 5/14 на 5 = 5 целых 16/70 + 7 целых 25/70 = 12 целых 41/70
3. 10 целых 29/70 + 12 целых 41/70 = 23
Ответ: 23

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