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!