how do i work that out
2007-08-30 16:45:46 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
sorry! its not 1 ANd a ninth.. its just a ninth so... 9 divided by a ninth
2007-08-30 16:53:17 · update #1
Firstly, one and a ninth = 1 + 1/9 = 9/9 + 1/9 = 10/9
Now, 9/(10/9) - invert the 10/9 and multiply
9 * 9/10 = 81/10
After your edit: 9/(1/9) = 9 * 9/1 = 81
2007-08-30 16:49:55 · answer #1 · answered by Anonymous · 0⤊ 2⤋
9 divided by 1/9 = 9 x 9/1 = 9x9=81
2007-08-30 16:54:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1 1/9 = 10/9
Now do the division.
9 / (10/9)
Multiply numerator and denominator by 9.
9*9 / [9*(10/9)] = 81/10 = 8 1/10
2007-08-30 16:51:57 · answer #3 · answered by Northstar 7 · 0⤊ 0⤋
9 / (1/9) = 81
9 / (1 1/9) = 9/(10/9) = 81/10= 8 1/10
to divide by a fraction, multiply by its reciprocal (i.e., invert and multiply)
2007-08-30 16:57:37 · answer #4 · answered by skipper 7 · 0⤊ 0⤋
it will be like :
9/(1/9)
A/(B/C) = (AxC)/B
so 9/(1/9)=(9x9)/1=81
2007-08-30 16:56:52 · answer #5 · answered by Yusuf 4 · 0⤊ 0⤋