Friday

October 9, 2015
Posted by **Logan** on Saturday, May 16, 2009 at 3:35am.

- Essential Mathematics -
**drwls**, Saturday, May 16, 2009 at 6:45amYou could multiply the (rounded) decimal equivalents, 1.4667 x 1.9697 x 1.3846, or compute the ratio of the products of numerators and denominators, which is

25740/6435.

In this case, you can also do some rearranging and cancelling, by changing 18/15 to 6/5, 65/13 to 5, and 22/33 to 2/3, giving you

2/3 x 6/5 x 5 = 2/3 x 6 = 4

usually, one isn't that lucky with the cancelling method

- Essential Mathematics -
**Kurt**, Saturday, May 16, 2009 at 11:23amFactor everything thus:

2*11*5*13*2*3*3

-------------- = 2*2 = 4

3*5*3*11*13

QED.