The numerical expression 3-8-5-7 equal to -19-56 shows that-

The correct option is B rational numbers are closed under addition 3/8 + 5/7 = 19/56 shows that on adding two rational numbers we get another rational numbe ...

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Standard VIII

Mathematics

Closure Property of Rational Numbers

The numerical...

Question

The numerical expression $\frac{3}{8}$ + ( $\frac{- 5}{7}$ ) equal to $\frac{- 19}{56}$ shows that:

rational numbers are not closed under subtraction

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addition of rational numbers is not commutative

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rational numbers are closed under addition

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addition of rational numbers is commutative

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Solution

The correct option is C
rational numbers are closed under addition

$\frac{3}{8}$ + $\frac{- 5}{7}$ = $\frac{- 19}{56}$ shows that on adding two rational numbers we get another rational number. So this expression shows that rational numbers are closed under addition.

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Similar questions

The numerical expression $\frac{3}{8} + \frac{- 5}{7}$ equal to $\frac{- 19}{56}$ states that

Q. The numerical expression

(\frac{3}{8} - \frac{5}{7})

equal to

- \frac{19}{56}

states that:

The numerical expression

$\frac{3}{8} + (\frac{- 5}{7}) = \frac{- 19}{56}$

states that ______.

Question 3
The numerical expression $\frac{3}{8} + \frac{(- 5)}{7} = \frac{- 19}{56}$ shows that:
(a) rational numbers are closed under addition.
(b) rational numbers are not closed under addition.
(c) rational numbers are closed under multiplication.
(d) addition of rational numbers is not commutative.

8 \times \frac{3}{19} \times \frac{38}{56} =

\frac{x}{7}

. Find x.

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The numerical expression 38 + (−57) equal to −1956 shows that:

The correct option is C rational numbers are closed under addition 38 + −57 = −1956 shows that on adding two rational numbers we get another rational number. So this expression shows that rational numbers are closed under addition.

The numerical expression $\frac{3}{8}$ + ( $\frac{- 5}{7}$ ) equal to $\frac{- 19}{56}$ shows that:

The correct option is C
rational numbers are closed under addition

$\frac{3}{8}$ + $\frac{- 5}{7}$ = $\frac{- 19}{56}$ shows that on adding two rational numbers we get another rational number. So this expression shows that rational numbers are closed under addition.