Question

a)(4 i 4/7 - 2 i 9/14) : (7 i 6/7 - 7 i 15/28)=

b)(1 i 1/5 + 20/21):(2 i 2/3 - 2 i 2/7)=

c)(1/12+1 i 1/6):(5 i 3/5 - 3 i 29/10)=

d)(3 i 1/2 - 2 i 6/7 + 1/3)x 3 i 3/5 =

e)(1/25+ 2 i 5/7 + 5 i 1/2) : 14/15=

pomóscie plizzzzz

Answer 1

a)(4 i 4/7 - 2 i 9/14) : (7 i 6/7 - 7 i 15/28)=

(4 i 8/14-2 i 9/14) : (7 i 24/28 - 7 i 15/28)=

(3 i 22/14-2 i 9/14) : 9/28=

1 i 11/14*28/9=

25/14*28/9=50/9=5 i 5/9

b)(1 i 1/5 + 20/21):(2 i 2/3 - 2 i 2/7)=

(1 i 20/105+100/105):(2 i 14/21-2 i 6/21)=

1 i 120/105:8/21=225/105*21/8=4725/840=

5 i 525/840=1 i 105/168

c)(1/12+1 i 1/6):(5 i 3/5 - 3 i 29/10)=

(1/12+1 i 2/12):(5 i 6/10-5 i 2/10)=

(1 i 3/12):(4/10)=15/12*10/4=75/24=3 3/24=3 i 1/8

d)(3 i 1/2 - 2 i 6/7 + 1/3)x 3 i 3/5 =

(3 i 21/42-2 i 36/42+14/42)*18/5=

(3 i 35/42-2 i 36/42)*18/5=

(2 i 77/42 - 2 i 36/42)*18/5=

41/42*18/5=123/35=3 i 18/35

e)(1/25+ 2 i 5/7 + 5 i 1/2) : 14/15=

(14/350+2 i 125/350+5 i 175/350):14/15=

7 i 314/350*15/14=

2764/350*15/14=2073/490=4 i 113/490