the answer is: 18six sevenths times twenty one wholes = 18
One-seventh = 21/7 = 3 so three-sevenths = 3 x 3 ie 9.
28
it is 20 21s
Two sevenths. 2/7
9
15/7
5 5/6 x 9 3/7 is 55.
1/9
It is 14/9
18/35
It is three fourteenths.
Two sevenths times three fourths is six twenty-eighths or three fourteenths.
3/7 x 21 = 9
26.4642857143
5/70 or0.0857142857
9/21 is the same as 3/7.