Question

Oblicz.
1 4/9 * 12 =
6 * 2 1/2 =
2 3/8 *12 =
4 2/7 * 3 1/2=
8 1/3 * 2 2/5 =
4 2/7 * 2 1/7 =

zad 2.

3/4 liczby 360
2/5 liczby 150
1 3/10 liczby 900
2 1/2 liczby 300

prosze o dokładne rozpisywanie
daje naj
:D! pozdro

Answer 1

1 4/9 *12= 13/9 *12= 13/3*4= 13/12=1 1/12
6 *2 1/2 =6*2,5=15
2 3/8 *12= 19/8 *12= 19/2*3 =57/2= 28 1/2
4 2/7 * 3 1/2= 30/7 *7/2= 210/14=15
8 1/3 *2 2/5= 25/3 *12/5=300/15=20
4 2/7 * 2 1/7==30/7 *15/7=450/49=9  9/49

Zad 2
3/4 *360=3*90=270
2/5 *150=2*30=60
1 3/10 *900= 1,3 *900=1170
2 1/2 *300= 5/2*300=1500/2=750