3:7

Here are the quick facts about the ratio 3:7:

• Is it in simplest form? Yes. gcd(3,7)=1, so 3:7 cannot be reduced.
• As a fraction (A:B = 3:7): A/B = 3/7 ≈ 0.428571.
• As a decimal ratio: Approximately 0.4286 (A to B).
• As a share of the total parts: total = 3 + 7 = 10 parts.
  • A's share = 3/10 = 30%
  • B's share = 7/10 = 70%
• If the total amount is T units, then:
  • A = 0.3T
  • B = 0.7T
• If you scale up by a factor k: 3k : 7k
• Example: If there are 50 items total, A = 3/10 × 50 = 15, B = 7/10 × 50 = 35

What would you like to do with this ratio? Solve a specific problem or convert to another form?