112
The number is 1.
The GCF of 21, 77, and 84 is 7. First you have to find the lowest common factor, that is able to be divided by all the numbers. E.g. 7 *21/7=3 *77/7=11 *84/7=12 3 and 11 are prime numbers and can therefore not be any divided further. Therefore the answer is 7.
As 315 is ending with a 5 it can be divided by 5 315/5=63 As 6+3=9 then it can be divided by 9 63/9=7 7 is a prime number Then 315 = 32 x 5 x 7
1, 2, 3 and 6
2.3333
0.4286
6 divided by 7 times 3 divided by 5 = 0.51428571428
3/7 x 7/8 = 21/56 or 3/8
3
0.1111
3 divided by 7 is:3/7 = 0.428571428 calculating to 9 decimal places.
7 divided by 13 times 2 divided by 3 is 14/39
3 and 6/7 divided by 1 and 2/7 = 3
3/7
It is: 11 divided by 3/7 = 77/3 or 25 and 2/3
3/7 divided by 9