Need to know how to proceed getting the answer to the question what is 7/12 divided by 14/15
asked Feb 21, 2012 in Trigonometry Answers by anonymous

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

9 Answers

you need to rationalize the denominator first. do this by multiplying by the reciprical 15/14. what you do to the denominator do to the numerator 7/12X15/14. and you get 105/168 = .625
answered Feb 21, 2012 by anonymous
2 1/3 times 3 3/4
answered May 3, 2012 by anonymous
How do you divide 926,748,943,317.94 by 97,436.721
answered Sep 12, 2012 by anonymous
how to divide 1/4 by 2/3
answered Sep 27, 2012 by anonymous
Find a common denominator then change the numerator to match them. Then multiply.
answered Sep 29, 2013 by anonymous
How do yo divider 7/560
answered Feb 6, 2014 by Funer
five eights
answered Feb 12, 2014 by patricia hiller

First, find the common denominator of 12 and 15. The easiest one would be 60. Now since you multiply 12x5 to get 60, multiply 7 (numerator) by 5 to get 35. Do the same to other fraction exceptt mulitplying numerator by 4 since 15x4=60. You should now have 35/60 divided by 56/60. Change the division sign to mulptiplication sign. Now find the reciprocal of 56/60 which is 60/56. Now just simply mulitply across and you should get 2100/3360. Now just simplify or put in lowest terms. Divide both numerator and denominator by 5. You should then get 420/672. Now divide both by 2. You should get 210/336. Now divide both by 3. You should get 70/112. Now again divide both by 2. Finally, divide both by 7 and the final answer should be  5/8. coolcoolcheekyyes

answered Feb 21, 2015 by Da Math Dood
When you need to divide by a fraction, the first thing you do is invert the fraction and use it to multiply.

(7/12) / (14/15) = (7/12) * (15/14)

Multiply the two numerators, and multiply the two denominators

(7 * 15) / (12 * 14)

Simplify where possible: divide the 7 by 14, giving (1 * 15) / (12 * 2)      (7/14 is 1/2)

For the next step, visualize this: (15 is 3 * 5; 12 is 3 * 4) so we have (1 * 3 * 5) / (3 * 4 * 2)

Divide both the 15 and the 12 by 3: (1 * 5) / (4 * 2)       (we have divided the 3 in the numerator by the 3 in the denominator)

Perform the mulitplications: 5 / 8

If you have not been told to give the decimal equivalent, that is your answer. I'm sure, though, that the fraction is the answer that you are looking for.
answered Mar 24, 2015 by CWA Level 11 User (78,000 points)

Related questions

1 answer
asked Sep 24, 2012 in order of operations by anonymous | 338 views
4 answers
asked Nov 11, 2011 in order of operations by anonymous | 860 views
1 answer
asked Mar 21, 2012 in Algebra 1 Answers by anonymous | 192 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
77,139 questions
80,563 answers
1,624 comments
58,833 users