Приведите дроби к знаменателю 100: 3/2, 5/4, 6/5, 31/25.
1) 3/2 = 150/100=1 50/100 ; 5/4= 125/100=1 25/100; 6/5=120/100=1 20/100; 31/25=124/100=1 24/100.
3/2*50 5/4*25 6/5*20 31/25*4
2а)3/2=150/100 5/4=125/100 6/5=120/100 31/25=124/100 б)2/5=24/60 5/12=25/60 7/15=28/60 13/30=26/60 в)1/4=6/24 7/6=28/24 3/8=9/24 17/12=34/24 г)2/3=30/45 7/5=63/45 4/9=20/45 16/15=48/45