The centi- prefix means one hundredth → 1 cm = 0.01 cm
The deci- prefix means one tenth → 1 dm = 0.1 cm
→ 25 cm : 9 dm
= 25 × 0.01 m : 9 × 0.1 m
= 0.25 m : 0.9 m
= 0.25 : 0.9
= 25 : 90
The radio of 25cm to 9 dm is 25:90
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To simplify the ratio of 25 to 45, you first need to find the greatest common divisor (GCD) of the two numbers, which is 5. Dividing both numbers by 5 gives you 5 to 9. Therefore, the ratio of 25 to 45 in simplest form is 5:9.
not sure what you're asking, but 25 cm is about 9 7/8 inches (25.4 cm equals 10 inches, exactly)
ratio of areas = (ratio of sides)² ratio of sides = 3 : 5 → ratio of areas = 3³ : 5² = 9 : 25 → area larger = 81 m² ÷ 9 × 25 = 225 m²
9:25
9 x 1 = 9 9 x 2 = 18 9 x 3 = 27 9 x 4 = 36 So reduce 9/36 to 1/4 100 per cent divided by 4 equals 25 Answer: 25%