42 is 10% of 420
Calculation steps:
42 ÷ ( 10 ÷ 100 ) = 420
Formula
42 ÷ ( 10 ÷ 100 )
Percent to decimal
10 ÷ 100 = 0.1
42 ÷ 0.1 = 420 So 42 is 10% of 420
Example