102:34=( 102÷34):(34÷34)=3: 1

9/4: 15 = (9 × 4): ( 15 × 4) = 9: 15 = (9 ÷ 3): ( 15 ÷ 3) = 3: 5.

3/7: 265438+ 10 = (3/7× 2 1): (265438+ 10×2 1)=9: 10.

25 12:05' s 65438+4 =(25 12×75):(05×75' s 65438+4)= 36:20 =(36÷4):(20÷4

0.49:0.7=(0.49× 100):(0.7× 100)=49:70=(49÷7):(70÷7)=7: 10

2:0.04=(2× 100):(0.04× 100)=200:4=(200÷4):(4÷4)=50: 1

1.25:8=( 1.25× 100):(8× 100)= 125:800=( 125÷25):(800÷25)=5:32

2.4 kg; 600g = 2400g:600g =(2400g÷600g):(600g÷600g)= 4: 1。

1 hour 20 minutes: 3/4 hours =80 minutes: 45 minutes = (80 ÷ 5): (45 ÷ 5) = 16: 9.

Find the ratio: 5/81.47/201/49100/79/7.

X:6 = 9 Choose 4.

Solution: x ÷ 6 = 4 in 9.

X = 4×6 of 9.

X=8/3