by what rational number should -15/28 be divided to obtain 3/4?
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-15/28 must be divided by -5/7 to obtain 3/4.
-15/28 ÷ -5/7 = 3/4
we cannot do division in rational numbers. So we should take reciprocal and multiply the numbers.
-15/28 × 7/-5 = 3/4
3/4 = 3/4
So 3/4 must be divided.
We can get the answer by taking a variable also.
-15/28 ÷ x = 3/4
Transpose x to the LHS of the equation.
-15/28 × 4/3 = x
-5/7 = x
Thus, x = -5/7
The number must be divided is -5/7.
I hope this is useful.
-15/28 ÷ -5/7 = 3/4
we cannot do division in rational numbers. So we should take reciprocal and multiply the numbers.
-15/28 × 7/-5 = 3/4
3/4 = 3/4
So 3/4 must be divided.
We can get the answer by taking a variable also.
-15/28 ÷ x = 3/4
Transpose x to the LHS of the equation.
-15/28 × 4/3 = x
-5/7 = x
Thus, x = -5/7
The number must be divided is -5/7.
I hope this is useful.
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Step-by-step explanation:
-5/7
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