Question

zadanie sprawdź sam siebie 1 a) 1/3 razy 4 b) 4/5:3 2 A) 3/16 RAZY 12 b) 5/12 : 10 3 a) 2 całe 4/5 razy 3 B) 3 całe 4/7 : 3 4a) (16 całych 3/8 minus 5całych 3/5) : 5

Answer 1

1/3*4=4/3=1 1/3
4/5:3/2=4/5*2/3=8/15
3/16*12=9/4=2 1/4
5/12:10/3=5/12*3/10=1/8
2 4/5*3=14/5*3=42/5=8 2/5
3 4/7:3/4=25/7*4/3=100/21=4 16/21
[16 3/8-5 3/5]:5=[131/8-28/5]:5=[655/40-224/40]:5=431/40:5=431/40*1/5=431/200=2 31/200

Answer 2

a) 1/3*4=1/3*4/1=3/4
b) 4/5:3= 4/5 : 3/1= 4/5 * 1/3 = 4/15
c) 3/16*12= 3/16*12/1 = 9/4= 2 i 1/4
d) 5/12 : 10 =  5/12 : 10/1 = 5/12 * 1/10 =
e) 2 i 4/5 * 3 = 14/5 * 3/1 = 42/5 = 8 2/5
f) 3 i 4/7  -  i : 3 = 25/7 : 3/1 = 25/7 * 1/3 = 25/21 = 1 i 4/21
g) (16 i 3/8 - 5 i 3/5) : 5 = (16 i 15/40 - 5 i 24/40) : 5 =(16 i 55/40 - 5 i 24/40) : 5 = 11 i 31/40 : 5 = 471/40 :  5/1 = 471/40 * 1/ 5= 471/200 = 2 i 71/200