1bx3/4=a
a/3/4=b
A: B =3/4
2.(3/5)/2=3/ 10 2/(3/5)= 10/3
(3/5)/(2/3)=3/5
3.24:36=2:3 0.75: 1=3:4
(3/4):(9/ 10)=5:6
4.( 1)200/(2/5)=500 (only)
(2)200/( 1-3/5)=500 (only)
(3)700x(2/7)=200 (only)
p53
1(1) X. (2) V. (3) X. (4) X.
2. Omit.
3. Omit.
4.30/(10/11) = 33 (cubic decimeter)
5.60/(6/11) =110 (km/h)
6.500x(2/25)/( 1/6)=240 (times)
7.( 1)8: 10=4/5=40/50=0.8
(2) 1.25 4:5 4/9
(3) 1/ 10
8. Daylight: 24x(5/8)= 15 (hour)
Night: 24x(3/8)=9 (hours)
9. 150:60: 15= 10:4: 1
10. 12:38=6: 19
15000:38
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