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3 years ago

What is 3 2/5 minus 1 9/10

Mathematics

2 answers:

cestrela7 [59]3 years ago

5 0

$3\frac{2}{5}=3\frac{2\cdot2}{5\cdot2}=3\frac{4}{10}=3.4\\\\1\frac{9}{10}=1.9\\\\3\frac{2}{5}-1\frac{9}{10}=3.4-1.9=\boxed{1.5}$

ivanzaharov [21]3 years ago

3 0

The answer is 1 1/2 or 1 5/10

Here is my work if you don't understand, ASK!!

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See Explanation

Step-by-step explanation:

(a) Proof: Product of two rational numbers

Using direct proofs.

Let the two rational numbers be A and B.

Such that:

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$B = \frac{2}{3}$

The product:

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$A * B = \frac{1}{1} * \frac{1}{3}$

$A * B = 1 * \frac{1}{3}$

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Using direct proofs.

Let the two rational numbers be A and B.

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$A = \frac{1}{2}$

$B = \frac{2}{3}$

The quotient:

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$A / B = \frac{3}{4}$

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Let x and y be

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$y = \frac{2}{3}$

The sum:

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Take LCM

$x + y = \frac{3+4}{6}$

$x + y = \frac{7}{6}$

Proved, because 7/6 is rational

<em>The above proof works for all values of A, B, x and y; as long as they are rational values</em>

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