Teacher2Teacher 
Q&A #9409 
View entire discussion [<< prev] [ next >>]
From: Loyd <loydlin@aol.com> To: Teacher2Teacher Public Discussion Date: 2005092912:20:51 Subject: Re: basic math On 2005092816:38:38, maxine robertson wrote: > >Please help with finding and solving: x + 3/8 + 3/8 =5/12 > >also 3/5 x 13.65  2/9 x 1.307 > Start with this one: x + 3/8 + 3/8 =5/12 The lesast common denominator (LCD) is 8x12 or 96. Multiply each term by the LCD and: 96x + 36 + 36 = 40 96x = 4072 96x = 32 x=32/96= 1/3 For the other one, multiply first and then subtract. 3/5 x 13.65  2/9 x 1.307 Set up as follows: 3x13.65  2 x 1.207   5 9 8.19  .2682222 repeating Just subtract the two numbers.
Post a reply to this message

[Privacy Policy] [Terms of Use]
Math Forum Home 
The Math Library 
Quick Reference 
Math Forum Search