the answer is: 18
six sevenths times twenty one wholes = 18
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∙ 2012-03-04 14:47:51Anonymous
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One-seventh = 21/7 = 3 so three-sevenths = 3 x 3 ie 9.
1 and 6/7 or 27/7
In order to do this problem, you need to multiply directly. So, 2 over 3 times 6 over 7. First, we're going to do the top. 2 times 6 is 12. The bottom is 3 times 7, which is 21. Your answer is 12 over 21, but they can be both reduced by 3, so your final answer is 4 over 7.
6/21 reduces to 2/7 ( divide by 3) 21/6 = 3 3/6 = 3 1/2 . ( divide 6 into 21-- it goes time with a remainder of 3. )
85.714%
The answer is six
2/7 times 21 = 6
(6 × 7) ÷ 2 = 21
6 divided by 2/7 = 21
2/7 of 21 is 6.
18 / 6/7 = 21
Four sevenths of 21 is 12.
63/7 * 21 = 45/7 * 21 = 45*3 = 135
21
3 / 1/7 = 3 x 7 = 21 Therefore, there are 21 sevenths in three wholes.
It is: 119 and 5/7 minus 21 and 6/7 = 97 and 6/7
2/3 + 2/7 = 14/21 + 6/21 = 20/21