Question

oblicz:) 6*(3/5+1/2)-6*(6/10+5/10= (1 1/3-3/4)*7= 10-(2 5/7-4/7-1/5):2= 1 1/3:2 - 3 1/3:10=

Answer 1

6*(3/5+1/2)- 6*(6/10+5/10)= 6*( 3/10 +5/10) - 6*(6/10+5/100=6 * 8/10 - 6* 11/10=48/7 - 33/5= 240/35 - 231/35=9/35

10-(2 5/7-4/7-1/5):2=10-(2 1/7 - 1/5):2=10-(15/7 - 1/5):2=10-(75/35 - 7/35) :2=10- 68/35 :2=10-68/35*1/2=10 - 68/175=10 - 2 39/175=7 136/175

(1 1/3-3/4)*7=(4/3 - 3/4)*7=(16/12 -9/12)*7=7/12 *7=49/12=4 1/12

 1 1/3:2 - 3 1/3:10=4/3 :2-10/3 :10=4/3 *1/2 - 10/3 *1/10=4/6+10/30=20/30+10/30 =30/30=1

Answer 2

18/5+3 -1,2 -3 = 3,6+3-1,2-3 = 2,4

28/3 -21/4 = 112/12 - 63/12 = 49/12 = 4 i 1/12

10-(19/7-4/7-1/5)/2 = 10-(15/7-1/5)/2 = 10-(75/35 - 7/35)/2 = 10-(68/35)*1/2 = 10-68/70 = 9 i 1/35

4/3*1/2 = 4/6 = 2/3

10/3*1/10 = 10/30 = 1/3