Question

OBLICZ ułamki

3 3/4 razy 2 2/5 - 4 3/8 =....

10 - 1 5/6 razy 4 1/6=...

5/7 razy 4 2/3 + 5/6 : 1 1/9 =.....

(2 1/4 - 1 2/3 ) : (1/6 +2/9) =....

prosze o pomoc plisss

Answer 1

3i3/4 * 2i2/5 -4i3/8 = 15/4 * 12/5 -4i3/8=3/1*3/1 -4i3/8= 9/1-4i3/8=

= 8 i 8/8 - 4 i 3/8 = 4 i 5/8

 

10-1 i 5/6*4 i 1/6 = 10- 11/6*25/6=10-275/36=10-7i23/36=9 i 36/36 -7 i 23/36=

= 2 i 13/36

 

5/7 * 4 i 2/3 +5/6:1 i1/9 = 5/7*14/3+5/6:10/9= 10/3+5/6*9/10=10/3+1/2*3/2=

= 10/3+ 3/4 = 40/12 + 9/12 = 49/12 = 4 i 1/12

 

(2i1/4-1i2/3) :(1/6+2/9) = (2i3/12-1i8/12):(3/18+4/18)= (1i15/12-1 i 8/12): :7/18= 7/12*18/7=1/2*3/1= 3/2 = 1 i 1/2