21/28 = 3/4 = 75%
LCM(6, 21, 28) = 84.
The LCM of 2135 and 28 is 8540 The LCM of 21, 35 and 28 is 420.
LCM(8, 21, 28) = 168
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84.
The Least Common Multiple (LCM) of 35, 21, and 28 is 420.
21 out of 28 = 75%
The answer is 50%
28%
percentage = 76.19% % rate: = 16/21 * 100% = 0.7619 * 100% = 76.19%
81%
21%
% rate = 28.57% =6/21 * 100% = 0.2857 * 100% = 28.57%
150-21--------- x 100 = the answer150
17
21%
To find the percentage of questions that were wrong on the test, you would first calculate the total number of questions answered incorrectly, which is 6. Then, you would divide this by the total number of questions on the test, which is 28. Finally, you would multiply this result by 100 to convert it to a percentage. Therefore, the percentage of questions answered incorrectly on the test is (6/28) x 100 = 21.43%.
To work out the percentage of, for example, 21 correct answers out of 30 questions, do the following: 21 ÷ 30 × 100 = 70 (add the percentage sign, thus: 70%)(If the answer had been 0.70, ignore the 0. and use 70 as the percentage.)