Before you can express as a percentage, both must be in the same unit. Is either you change the minutes to hours or hours to minutes.
Change the seconds to minutes. 60 seconds make 1 minute. Hence 30 seconds is half (
) minutes.
7min.30 sec.=7 minutes + minutes. 7min.30 sec.=7 minutes 7min.30 sec.= minutes 7min.30 sec.= minutes 7min.30 sec.= minutes Percentage =×100%1 hour =60 minutes Percentage = minutes ÷60 minutes ×100%The minutes cancel each other.
Percentage =÷60×100%Every number/letter is being divided by 1 but not written.
60= Percentage =÷×100%Reciprocate the fraction (numerator becomes denominator and denominator becomes numerator) at the right and change the division
(÷) to multiplication ( x ) sign.
Percentage =××100%Note: 15 divides itself 1 and 60, 4 times.
Percentage =××100%Note: 4 divides itself 1 and 100, 25 times.
Percentage
=×25%Percentage
=Percentage
=Percentage = 12.5\%