Beginner Ratio Practice

Both 18 and 24 can be divided by their Greatest Common Divisor (GCD), which is 6. 18 ÷ 6 = 3, and 24 ÷ 6 = 4.

Write the initial ratio 15 : 25 and divide both terms by their GCD (5). 15 ÷ 5 = 3 and 25 ÷ 5 = 5.

Multiplying both terms of 2 : 7 by 2 gives 4 : 14. Because both terms are scaled by the same factor, the ratios are equivalent.

1 meter = 100 cm, so 2 meters = 200 cm. The ratio is 40 cm : 200 cm = 40 : 200 = 1 : 5 (divided by 40).

Total parts = 1 + 4 = 5. First part = 1/5 × 100 = 20%. Second part = 4/5 × 100 = 80%.

Multiply both terms by 10 to eliminate decimals: 15 : 45. Then divide both terms by their GCD (15) to get 1 : 3.