Question

7/5+3/5 number system 8th ​

Answer 1

5/7 is a rational number. The word 'rational' actually comes from the word 'ratio. ' One way to write a ratio is with a fraction.

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Answer 2

$\frac{7}{5} + \frac{3}{5} \\ \\ \frac{7 + 3}{5} \\ \\ \frac{10}{5} \\ \\ = 2 \: a ns$

A numeral system is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner. The same sequence of symbols may represent different numbers in different numeral systems