Question

pomozcie bo jestem noga z ułamkami zad 1 1/3*2+1/5*3 4*3/8-3*1/9 1/2 / 5+1/3 /2 8/9 /2 -9/10 /3 1/3*1/2+4/5 3/5 / 2/3-11/20 4/7 *7/8 +8/9 /4/15 2/3 / 4/3 -5/12 *12/25

Answer 1

Zad .1

a )1/3 · 2/1 + 1/5 · 3 = 2/3 + 3/5 + 10/15 + 9/15 + 1cała i 4/15

b) 4*3/8-3*1/9 + 2/8 - 3/9 = 108/72 - 24/72 = 84/72

c) 1/2 / 5+1/3 /2 = 1/2 · 1/5 + 1/3 ·1/2 = 1/10 + 1/6 = 6/60 + 10/60 +16/60

d)8/9 /2 -9/10 /3= 8/9* 1/2 - 9/10* 1/3 = 8/18 - 9/30 = 240/520 - 162 / 520 = 78/520

e) 1/3*1/2+4/5 = 1/6 + 4/5 = 5/30 + 24/30 = 29/30

f)3/5 / 2/3-11/20 = 3/5 * 3/2 - 11/20 = 9/10 - 11/20 = 18/20 - 11/20 = 7/20

g) 4/7 *7/8 +8/9 /4/15 = 28/56 + 4/9 *15/1 = 28/50 + 60/9 = 262/450 + 3000/450 + 3262/ 450

h)2/3 / 4/3 -5/12 *12/25= 1/1 * 1/2 - 60/300 = 1/2 * 60/300 = 300/600 - 120/600= 180/600

 

trochę mi to zajeło ale jest XD