Respuesta :

a) 4*25=100 and 1*4=4

so 1/4=4/100
To simplify fractions, divide them by their least common denominator. 25 and 100 have an LCD of 5, resulting in 5/20. This can further be simplified with the new LCD, which is also 5, resulting in 1/20. 
Try the later ones on your own.