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Math answers please - Using Fractions

by Ralph Sanchez
(Ellenton, Fl USA)











































20,880 x 2/5 =

15 3/4 + 1 3/4 =

what is 6 divided by 3/8 =

what is the total of 49 1/4 + 3 3/8 =

Convert 39/5 to a mixed number written in lowest tenths =

Comments for Math answers please - Using Fractions

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Jul 12, 2012
Using Fractions
by: Staff


Answer:


A. 20,880 x 2/5 =

20,880 x 2/5

= (20,880 x 2)/5

= (41,760)/5

= 8,352

>>> OR <<<

20,880 x 2/5

= 20,880 x (2/5)

= 20,880 x (0.4)

= 8,352


B. 15 3/4 + 1 3/4 =

15 3/4 + 1 3/4

= 63/4 + 7/4 =

= (63 + 7)/4

= (70)/4

= 35/2

= 17 ½

>>> OR <<<

15 3/4 + 1 3/4

= 15.75 + 1.75

= 17.5


C. what is 6 divided by 3/8 =

6 divided by 3/8

= 6 ÷ (3/8)

= (6/1) ÷ (3/8)

= (6/1) * (8/3)

= (6 * 8) / (1 * 3)

= (48) / (3)

= 16

>>> OR <<<

6 divided by 3/8

= 6 ÷ (3/8)

= 6 ÷ (0.375)

= 16


D. what is the total of 49 1/4 + 3 3/8 =

49 1/4 + 3 3/8

= (197/4) + (27/8)

= (197/4)*(2/2) + (27/8)

= (394/8) + (27/8)

= (394 + 27) / 8

= (421) / 8

= 421/ 8

= 52 ⅝

>>> OR <<<

49 1/4 + 3 3/8

= 49.25 + 3.375

= 52.625


E. Convert 39/5 to a mixed number written in lowest tenths =

39/5

= 7 r 4

= 7 ⅘

= 7 + ⅘

= 7 + (4/5)*(2/2)

= 7 + (4*2)/(5*2)

= 7 + (8)/(10)

= 7 + 8/10

= 7 8/10





Thanks for writing.

Staff
www.solving-math-problems.com


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