Fractions

Multiply both numerators and denominators with one another:
18 x 3 = 54
25 x 4 = 100

New fraction = 54/100

which reduces to: 27/50

18/25 x 3/4=
numerator times numerator divided by denominators multiplied...
18*3 / 25*4 =
18*3 / 100 =
54 / 100 =
= 0.54
or in fraction form:
= 27/50