The first day of Lent is known as Ash Wednesday. Christians are marked with ashes (formed by burning last year's Palm Sunday branches) to remember their mortality and sin.
Convert to improper fraction (multiply whole number by denominator and add numerator, keep the denominator)
5 1/4 = 21/4
4 1/2 = 9/2
Multiply 9/2 by 2/2 to get the same denominator = 18/4
Subtract the numerators, keep the denominator.
21/4-18/4 = 3/4.
Appeal to illegitimate authority, hope this helps!
