(2)5/9×6/25÷3/ 10=4/9

(3)(7/8-3/4)×4/ 15=2/ 15

(4) 12×(7/5÷3/ 10)=56

(5)3/7+6/7÷2/3= 12/7

(6)22÷( 1/5+ 1/6)=60

(7) 1/9×24+24×8/9=24

(8) 1 1/ 12- 1/3× 1/4=5/6

(9)5/7÷3- 1/2 1=4/2 1

P78 Solving Equation

( 1)2/5X—3/ 10 X = 120

1/ 10x= 120

x= 1200

(2)5+ 1/3 X = 13

1/3x=8 x=24

(3)2/3 X =2/9

x= 1/3

(4) X ÷5/8= 1/ 12

x= 1/ 12*5/8=5/96

20% X =30

=x=30/0.2= 150

I hope this helps.