7
7.7143
0.1296
7.7143
54
Three is the lowest common denominator. 21 divided by 3 = 7 54 divided by 3 = 18 21/54 = 7/18
54 divided by 7 is 7.71
60.1296
(9/2)/(54/7) = (9/2)x(7/54) = (63/108) = 21/36 = 7/12
54 / 7 = 7.71429
Well, the highest common factor of the numerator and the denominator is 3. 21 divided by 3 is 7 and 54 divided by 3 is 18. So the answer is:7/18
7/3 ÷ 3/7 = 54/9