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%
21%
81%
% rate = 28.57% =6/21 * 100% = 0.2857 * 100% = 28.57%
150-21--------- x 100 = the answer150
17
21%
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.)
To convert a number to a percentage multiply by 100 % → 21/27 = 21/27 × 100 % = 77 7/9 % = 77.777... % ≈ 78 %