Math & Algebra Tool
Fractions Solve for Unknown
Find the missing value (x) in a proportional equation (equivalent fractions).
X =
9.0000
Σ The Formula
a/b = c/d → ad = bc
Real World Examples
Standard Scaling
3/4 = x/12 → x = (3×12)/4 = 9.
Inverse Unknown
5/x = 10/20 → x = (5×20)/10 = 10.
# About This Calculator
Solving for an Unknown in Fractions involves the principle of cross-multiplication. If two fractions are equal (a/b = c/d), then their cross-products must also be equal (a × d = b × c).
This tool is useful for:
- Changing the scale of a fraction (Finding equivalent fractions).
- Solving simple algebraic proportions.
- Cooking and recipe adjustments.
How To Use
- Type the letter **'x'** in the field you want to solve for.
- Enter the known integers in the other three fields.
- The tool calculates the value of **x** based on cross-multiplication.
- Ensure no field is left empty.
Frequently Asked Questions
Can I use 'x' in the denominator?+
Yes, you can place 'x' in any of the four positions (numerator or denominator on either side).
Is Fractions Solve for Unknown free to use?+
Yes, Fractions Solve for Unknown on Matheric is completely free to use. We believe in accessible education and utility for everyone.
How accurate is Fractions Solve for Unknown?+
We use standard mathematical formulas and high-precision computing algorithms to ensure results for Fractions Solve for Unknown are accurate for academic and professional use.
Can I use Fractions Solve for Unknown on my phone?+
Yes! Fractions Solve for Unknown is fully responsive and optimized for all devices, including smartphones, tablets, and desktops.
Do you save my data?+
No. We prioritize your privacy. All calculations are performed in your browser or temporarily processed, and we do not store your personal input data.
How do I report a bug?+
If you notice any issues with Fractions Solve for Unknown or have suggestions for improvement, please contact us via the link in the footer. We value your feedback!
About
Solving for an Unknown in Fractions involves the principle of cross-multiplication. If two fractions are equal (a/b = c/d), then their cross-products must also be equal (a × d = b × c).
This tool is useful for:
- Changing the scale of a fraction (Finding equivalent fractions).
- Solving simple algebraic proportions.
- Cooking and recipe adjustments.