Question

1 3/4 + 8 1/3 + 7 4/5 ? must be interger or mixed number. simplify please

Answer 1

(7/4)+(25/3)+(39/5)

Answer 2

find common denominator

Answer 3

i cant come up with one

Answer 4

3*4*5=?

Answer 5

60

Answer 6

theres ur common denominator

Answer 7

so then i do 1 3/60 + 8 1/60 + 7 4/60?

Answer 8

no u need to find a number that if u multiplied it by 4 u get 60
so
4x__=60
what goes in the blank?

Answer 9

we was taught to line them up in my day

1 3/4
8 1/3
7 4/5
------
16+N

\[\frac{3}{4}+\frac{1}{3}+\frac{4}{5} = N \text{ ; *20}\]
\[\frac{3(20)}{4}+\frac{1(20)}{3}+\frac{4(20)}{5} = 20N \text{ ; reduce}\]
\[\frac{3(5)}{1}+\frac{1(20)}{3}+\frac{4(4)}{1} = 20N \text{ ; *3}\]
\[\frac{3(5)(3)}{1}+\frac{1(20)(3)}{3}+\frac{4(4)(3)}{1} = 20(3)N \text{ ; reduce}\]
\[\frac{3(5)(3)}{1}+\frac{1(20)(1)}{1}+\frac{4(4)(3)}{1} = 60N \text{ ; re-write}\]
\[45+20+36 = 60N \text{ ; add}\]
\[101 = 60N \text{ ; divide of the 60}\]
\[\frac{101}{60} = N \text{ ; divide of the 60}\]

Answer 10

change N to a mixed numeral by dividing it out

Answer 11

so the answer is 1 41/60?

Answer 12

16 + N

16 + (1 + 41/60) = 17' 41/60 if you did the division right ;)

Answer 13

so he answer is 17 41/60?

Answer 14

the

Answer 15

id say it is

Answer 16

it says that it is incorrect

Answer 17

then we will need to see why ...

Answer 18

how would be do that?

Answer 19

http://www.wolframalpha.com/input/?i=1+3%2F4+%2B+8+1%2F3+%2B+7+4%2F5+

Answer 20

17.88333333

S = .883333...

1000S = 883.3333
-100S = 88.33333
-----------------
900S = 795

S = 795/900 = 53/60

Answer 21

12*4 = 48; not 36 .. i forgot how to multiply

Answer 22

lol amistre

Answer 23

:) so N = 113/60

Answer 24

Legend!!!