Question

Приведите дроби 3/2,5/4,6/5,31/25 к знаменателю 100 приведите дроби 2/5,5/12,7/15,13/30 к знаменателю 60

Answer 1

100 : 2 = 50 - доп.множ. к 3/2 = (3*50)/(2*50) = 150/100
100 : 4 = 25 - доп.множ. к 5/4 = (5*25)/(4*25) = 125/100
100 : 5 = 20 - доп.множ. к 6/5 = (6*20)/(5*20) = 120/100
100 : 25 = 4 - доп.множ. к 31/25 = (31*4)/(25*4) = 124/100

60 : 5 = 12 - доп.множ. к 2/5 = (2*12)/(5*12) = 24/60
60 : 12 = 5 - доп.множ. к 5/12 = (5*5)/(12*5) = 25/60
60 : 15 = 4- доп.множ. к 7/15 = (7*4)/(15*4) = 28/60
60 : 30 = 2 - доп.множ. к 13/30 = (13*2)/(30*2) = 26/60