What is 5/17 plus 2/3? (Answer: 49/51)

Exact Answer

==================================================
Problem: What is 5/17 plus 2/3?
Formula / Expression: 5/17 + 2/3
Final Answer: 49/51
==================================================

Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 17 and 3 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 17 × 3 = 51.
Working: LCD(17, 3) = 51

Step 2: Convert to Equivalent Fractions with Common Denominator 51
Multiply the numerator and denominator of 5/17 by 3, and multiply the numerator and denominator of 2/3 by 17 so both fractions share the common base 51.
Working: 5 × 3/17 × 3 = 15/51 and 2 × 17/3 × 17 = 34/51

Step 3: Add the Numerators
Now add the numerators (15 + 34 = 49) and keep the common denominator 51 unchanged.
Working: 15 + 34/51 = 49/51

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 49 and 51 is 1, confirming that 49/51 cannot be reduced further—it is already in its simplest irreducible form.
Working: 49/51

Step 5: Decimal & Percentage Representation
Dividing the numerator 49 by denominator 51 produces a repeating decimal (approximately 0.960784, or 96.0784%).
Working: 49 ÷ 51 = 0.960784 (96.0784%)

Key Values:
- Simplified Fraction: 49/51
- Mixed Number Form: 49/51
- Decimal Value: 0.960784
- Percentage: 96.0784%

--------------------------------------------------
Solved with FractionsCalc:
https://fractionscalc.com/what-is-5-17-plus-2-3/
==================================================

5/17 + 2/3 = 49/51

Simplified Fraction

49/51

Mixed Number

Proper (49/51)

Decimal Value

0.960784

Percentage

96.0784%

Reduce / Convert Fraction:

Convert Fraction:

Enter Decimal Number:

Enter Percentage: %

What is % of

From Value: To Value:

Simplify Ratio: :

Switch to Proportion / Missing X Solver (A/B = C/D) →

Enter 3 known numbers and leave 1 empty (or type x) to solve:

← Switch to Ratio Simplifier (A:B)

Provide any 2 values below to calculate the remaining:

Price before discount

Discount

Price after discount

You saved

+ Add Sales Tax & Extra Coupon (Optional)

Sales Tax: % Extra Off: %

Provide any 2 values below to calculate the remaining:

Cost

Markup

REVENUE

Gross Profit

Profit Margin

Bill Subtotal

Tip Percentage

Split (People)

👥

Quick Tip:

Total Bill

Split Between

👥

Tip % (Optional)

Include Tip:

Total Price

Quantity

Unit of Measure

← Discount & Sales Tax • Ratio Simplifier (A:B) →

First Number: Second Number:

Find All Factors of:

Dividend: ÷ Divisor:

Number to Round: To Nearest:

Method: Standard (5+ ↑) Always Up (Ceil) Always Down (Floor)

Presets:

√ Square Root of: OR Power (x^y): ^{^}

x² + x + = 0

Number (n! & log):

Circle Radius (r):

Side a: Side b:

Angle (Degrees): °

Numbers (comma separated):

Total Items (n): Choose (r):

Decimal Number:

Number (1–3999):

Step-by-Step Solution: 5/17 + 2/3

Step 1

Find the Least Common Denominator (LCD)

The denominators 17 and 3 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 17 × 3 = 51.

LCD(17, 3) = 51

Step 2

Convert to Equivalent Fractions with Common Denominator 51

Multiply the numerator and denominator of 5/17 by 3, and multiply the numerator and denominator of 2/3 by 17 so both fractions share the common base 51.

5 × 3/17 × 3 = 15/51 and 2 × 17/3 × 17 = 34/51

Step 3

Add the Numerators

Now add the numerators (15 + 34 = 49) and keep the common denominator 51 unchanged.

15 + 34/51 = 49/51

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 49 and 51 is 1, confirming that 49/51 cannot be reduced further—it is already in its simplest irreducible form.

49/51

Step 5

Decimal & Percentage Representation

Dividing the numerator 49 by denominator 51 produces a repeating decimal (approximately 0.960784, or 96.0784%).

49 ÷ 51 = 0.960784 (96.0784%)

Visual Representation

The diagram below illustrates 5/17 plus 2/3 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`49/51`
Mixed Number Form	`49/51`
Decimal Form	`0.960784`
Percentage	`96.0784%`

Was this solution helpful?

Help us improve our free step-by-step tools

Frequently Asked Questions

What is 5/17 plus 2/3 as a fraction?

5/17 + 2/3 in simplest fraction form is 49/51.

What is 5/17 plus 2/3 as a decimal?

5/17 + 2/3 converted to a decimal is 0.960784.

What is 5/17 plus 2/3 as a percentage?

5/17 + 2/3 expressed as a percentage is 96.0784%.

Does 5/17 plus 2/3 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.960784...) because the denominator contains prime factors other than 2 and 5.