√(7 x 63) = 2.645751311 x 7.937253933 = 21
If you mean: .63 recurring then as a fraction in its lowest terms it is 7/11
If you mean using numbers 2, 3 and 7 then one solution is :- 32 x 7 = 9 x 7 = 63
The LCM is: 63
9x = 63 63/9 = 7 Therefore, x = 7
LCD(63, 7) = 63.
7 + 56 = 63
If you mean 63/72 then it is 7/8 simplified
Do you mean? 8/9 - 3/7 you will need a common denominator and an easy way is 9 * 7 = 63, then a form of one to maintain equality 7*8/7*9 - 9*3/9*7 56/63 - 27/63 = 29/63 --------------simplest form
63
63/9 = 7 and 63/7 = 9 So, yes they factors of 63.
63/9 = 7