Question

Pomocy !!! oblicz.

1/3 x 4 =

2całe i 4/5 x 3=

3/16x 12 =

5/12 x10=

4/5:3=

3całe i 4/7 : 3 =

(16 całych i 3/8 -5całych i 3/5 ) : 5 =

Answer 1

1/3*4 = 4/3 = 1 i 1/3
2 i 4/5 * 3 = 14/5 * 3 = 42/5 = 8 i 2/5
3/16 * 12 = 36/16 = 2 i 4/16 = 2 i 1/4
5/12 * 10 = 50/12 = 4 i 2/12 = 4 i 1/6
4/5:3 = 4/5 * 1/3 = 4/15
3 i 4/7 : 3 = 25/7 * 1/3 = 25/21 = 1 i 4/21
( 16 i 3/8 - 5 i 3/5) : 5 = (16 i 15/40 - 5 i 24/40) : 5 = (15 i 55/40 - 5 i 24/40) :5 = 10 i 31/40 * 1/5 = 431/40 * 1/5 = 431/200 = 2 i 31/200 

: ) 

Answer 2

1/3*4=4/3=1 1/3
2 4/5*3=14/4*3=42/5=8 2/5
3/16*12=9/4=2 1/4
5/12*10=25/6=4 1/6
4/5:3=4/15
3 4/7:3=25/7*1/3=25/21=1 4/21
[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