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8. Translate into English:

Дробь представляет собой часть целого. Число, стоящее над чертой, называется числителем дроби. Число, стоящее под чертой, называется знаменателем дроби. Числитель и знаменатель назы­ваются членами дроби.

Если в дроби числитель и знаменатель равны, то дробь равна 1.

Types of fraction

Common Fraction. A common fraction is a number that has the numerator represented by numbers placed the one above, and the other below a horizontal line. 3/7 is a common fraction.

Proper Fraction. If the numerator of a fraction is less than denominator the fraction is called a proper fraction. The value of a proper fraction is always less than I. 6/7, 1/5 and 9/10 are proper fractions.

Improper Fraction. If the numerator of a fraction is equal to I or larger than the denominator, the fraction is called an improper fraction. The value of improper fraction is equal to or larger than I. 5/3, 3/2, 8/ 8 are improper fractions.

Mixed numbers. A number which consists of a whole number and a fraction is called a mixed number. 2 1/9, 5 1/4, 9 2/5 are mixed numbers.

Reducing a Fraction to Lower Terms.

For convenience and clarity a fraction must always be expressed in its simplest form. That is it must be reduced to its lowest terms. To reduce a fraction to its lowest terms, divide the numerator and the denominator by the largest number that will divide into both of them evenly. This process is called the reduction of a fraction to its lowest terms. The largest quantity which is a common divisor of two or more quantities is called a greatest common divisor of these quantities. It is written G.C.D.

NOTES:

is equal to - равен

to reduce a fraction - сократить дробь

Exercises:

/. Read the following words paying attention to the pronunciation:

reduce, value, both, other, mixed, proper, improper

  1. Give all possible derivatives of the following words: value, convenience, to represent, to explain, to divide.

  1. Suggest the English for:

значение неправильной дроби, наименьший показатель, сокращение дроби, , наибольший общий делитель, выражены в простейшей форме, разделить их поровну, равно или больше чем, число расположено под дробной линией, этот процесс называется сокращением

4. Express agreement or disagreement with the following saying:

Model: Yes, you are right (it is correct).

No, you are wrong ( you are not right).

1. The value of a proper fraction is always less than 1.

2. A mixed number is a number which contains only a fraction.

3. We can't express a fraction in its simplest form.

4.In a common fraction the numbers are placed above and below the horizontal line.

5. A greatest common divisor is the smallest common divisor of two or more quantities.

5. Fill in the blanks with prepositions if necessary:

1. ... convenience and clarity a fraction must be always expressed ... its simplest ... form.

2. A number which ... consists ... a whole number and a fraction is called ... a mixed number.

3. The value ... improper fraction is equal ... or ... larger than 1.

4. This process is called ... the reduction ... a fraction ... its lowest term.

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