How to Find Fractions Equivalent to 18/20
1. Choose a multiplier
Use the same non-zero number for both terms; start with 2.
2. Multiply both terms
18 × 2 = 36 and 20 × 2 = 40.
3. Verify the ratio
18 × 40 and 20 × 36 both equal 720.
What Is Equivalent to 18/20?
Direct answer
36/40, 54/60, and 72/80 are equivalent to 18/20.
Fraction Converter
Enter whole-number numerator and denominator values. Results update instantly.
Simplified
9/10
Decimal
0.9
Percent
90%
Equivalent fractions
36/40 · 54/60 · 72/80
Equivalent Fraction Table for 18/20
Multiply the numerator and denominator by the same non-zero whole number. The written numbers change, but the ratio stays equal.
| Multiplier | Calculation | Equivalent fraction | Cross-product check |
|---|---|---|---|
| × 2 | (18 × 2) / (20 × 2) | 36/40 | 18 × 40 = 20 × 36 |
| × 3 | (18 × 3) / (20 × 3) | 54/60 | 18 × 60 = 20 × 54 |
| × 4 | (18 × 4) / (20 × 4) | 72/80 | 18 × 80 = 20 × 72 |
| × 5 | (18 × 5) / (20 × 5) | 90/100 | 18 × 100 = 20 × 90 |
| × 6 | (18 × 6) / (20 × 6) | 108/120 | 18 × 120 = 20 × 108 |
| × 7 | (18 × 7) / (20 × 7) | 126/140 | 18 × 140 = 20 × 126 |
Where 18/20 Appears
Because the numerator and denominator share a factor, this example is especially useful for practicing reduction before conversion.
Learning tip: Simplify first to make the decimal division and equivalence check easier.
Compare Every Form
- Fraction18/20
- Simplified fraction9/10
- Decimal0.9
- Percent90%
Frequently Asked Questions
What fraction is equivalent to 18/20?
36/40 is one equivalent fraction because both terms were multiplied by 2.
Is 18/20 already simplified?
No. Divide the terms by 2 to get 9/10.
How can I check an equivalent fraction for 18/20?
Cross-multiply. If the two cross-products are equal, the fractions represent the same value.
What are the decimal and percent forms of 18/20?
18/20 equals 0.9 as a decimal and 90% as a percentage.