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The concept of a common fraction. Numerator and denominator

A common fraction shows what part of a whole you take. The symbol ab\frac{a}{b} is read “aa over bb” or “aa b-ths”: - bbdenominator: into how many equal parts the whole was split; - aanumerator: how many of those parts you take. For example, 38\frac{3}{8}: the whole was split into 8 equal parts and 3 parts are taken. If the numerator is 1, it is a single part: 15\frac{1}{5}, 19\frac{1}{9}, and so on.
Denominator — number of equal parts of the whole
Numerator — how many parts are taken
ab\frac{a}{b}: first split, then choose parts
1b\frac{1}{b} — one b-th
Read the fraction from the picture
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