What is 4/23 plus 4/7? (Answer: 120/161)

Exact Answer

==================================================
Problem: What is 4/23 plus 4/7?
Formula / Expression: 4/23 + 4/7
Final Answer: 120/161
==================================================

Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 23 and 7 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 23 × 7 = 161.
Working: LCD(23, 7) = 161

Step 2: Convert to Equivalent Fractions with Common Denominator 161
Multiply the numerator and denominator of 4/23 by 7, and multiply the numerator and denominator of 4/7 by 23 so both fractions share the common base 161.
Working: 4 × 7/23 × 7 = 28/161 and 4 × 23/7 × 23 = 92/161

Step 3: Add the Numerators
Now add the numerators (28 + 92 = 120) and keep the common denominator 161 unchanged.
Working: 28 + 92/161 = 120/161

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 120 and 161 is 1, confirming that 120/161 cannot be reduced further—it is already in its simplest irreducible form.
Working: 120/161

Step 5: Decimal & Percentage Representation
Dividing the numerator 120 by denominator 161 produces a repeating decimal (approximately 0.745342, or 74.5342%).
Working: 120 ÷ 161 = 0.745342 (74.5342%)

Key Values:
- Simplified Fraction: 120/161
- Mixed Number Form: 120/161
- Decimal Value: 0.745342
- Percentage: 74.5342%

--------------------------------------------------
Solved with FractionsCalc:
https://fractionscalc.com/what-is-4-23-plus-4-7/
==================================================

4/23 + 4/7 = 120/161

Simplified Fraction

120/161

Mixed Number

Proper (120/161)

Decimal Value

0.745342

Percentage

74.5342%

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: 4/23 + 4/7

Step 1

Find the Least Common Denominator (LCD)

The denominators 23 and 7 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 23 × 7 = 161.

LCD(23, 7) = 161

Step 2

Convert to Equivalent Fractions with Common Denominator 161

Multiply the numerator and denominator of 4/23 by 7, and multiply the numerator and denominator of 4/7 by 23 so both fractions share the common base 161.

4 × 7/23 × 7 = 28/161 and 4 × 23/7 × 23 = 92/161

Step 3

Add the Numerators

Now add the numerators (28 + 92 = 120) and keep the common denominator 161 unchanged.

28 + 92/161 = 120/161

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 120 and 161 is 1, confirming that 120/161 cannot be reduced further—it is already in its simplest irreducible form.

120/161

Step 5

Decimal & Percentage Representation

Dividing the numerator 120 by denominator 161 produces a repeating decimal (approximately 0.745342, or 74.5342%).

120 ÷ 161 = 0.745342 (74.5342%)

Visual Representation

The diagram below illustrates 4/23 plus 4/7 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`120/161`
Mixed Number Form	`120/161`
Decimal Form	`0.745342`
Percentage	`74.5342%`

Was this solution helpful?

Help us improve our free step-by-step tools

Frequently Asked Questions

What is 4/23 plus 4/7 as a fraction?

4/23 + 4/7 in simplest fraction form is 120/161.

What is 4/23 plus 4/7 as a decimal?

4/23 + 4/7 converted to a decimal is 0.745342.

What is 4/23 plus 4/7 as a percentage?

4/23 + 4/7 expressed as a percentage is 74.5342%.

Does 4/23 plus 4/7 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.745342...) because the denominator contains prime factors other than 2 and 5.