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.
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84.
LCM(8, 21, 28) = 168
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 %