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jok3333 [9.3K]
3 years ago
14

ac{3}{5} - 1 \frac{3}{8} " alt="2 \frac{3}{5} - 1 \frac{3}{8} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Naily [24]3 years ago
8 0

let's firstly convert the mixed fractions to improper fractions, and then subtract.

\bf \stackrel{mixed}{2\frac{3}{5}}\implies \cfrac{2\cdot 5+3}{5}\implies \stackrel{improper}{\cfrac{13}{5}}~\hfill \stackrel{mixed}{1\frac{3}{8}}\implies \cfrac{1\cdot 8+3}{8}\implies \stackrel{improper}{\cfrac{11}{8}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{13}{5}-\cfrac{11}{8}\implies \stackrel{\textit{using the LCD of 40}}{\cfrac{(8)13~~-~~(5)11}{40}}\implies \cfrac{104-55}{40}\implies \cfrac{49}{40}\implies 1\frac{9}{40}

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Mixed numbers have both fractions and _____ numbers.​
Vladimir [108]

Answer:

"Whole"

Step-by-step explanation:

A mixed number is made out of two parts: the fraction and the whole number.

Other material would say that a mixed number has three parts: the numerator, denominator, and the whole number. This is also correct, as the numerator and denominator make up the fraction in the mixed number.

The fraction is the 'incomplete' part of the mixed number, and the whole number is the 'complete' part of the mixed number.

For example:

3.25 = 3\frac{1}{4}

0.25 = 1/4

3.00 = 3

"Whole" should fill in the blank and make the statement true.

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4 years ago
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3 years ago
How many solutions are there to 3x-10(x+2) =13-7x
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This is the following way to solve this problem:

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-7x-20-13=-7x             ( since the 13 is positive, when we move it to the other

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-7x-7=-7x

-7=-7x+7x                   ( we do the same thing we did above, now with the -7x)

-7=x

x=-7

Answer: x = -7

--- --- --- --- --- --- ---

: )

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