50% of 42 equal to 21
Calculation steps:
( 50 ÷ 100 ) x 42 = 21
Formula
(50 ÷ 100) x 42 = 21
Percent to decimal
50% to decimal is 50 ÷ 100 = 0.5
Multiply decimal with the other number
0.5 x 42 = 21
Example