What is 2/9 plus 5/16? (Answer: 77/144)

Exact Answer

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Problem: What is 2/9 plus 5/16?
Formula / Expression: 2/9 + 5/16
Final Answer: 77/144
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 9 and 16 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 9 × 16 = 144.
Working: LCD(9, 16) = 144

Step 2: Convert to Equivalent Fractions with Common Denominator 144
Multiply the numerator and denominator of 2/9 by 16, and multiply the numerator and denominator of 5/16 by 9 so both fractions share the common base 144.
Working: 2 × 16/9 × 16 = 32/144 and 5 × 9/16 × 9 = 45/144

Step 3: Add the Numerators
Now add the numerators (32 + 45 = 77) and keep the common denominator 144 unchanged.
Working: 32 + 45/144 = 77/144

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 77 and 144 is 1, confirming that 77/144 cannot be reduced further—it is already in its simplest irreducible form.
Working: 77/144

Step 5: Decimal & Percentage Representation
Dividing the numerator 77 by denominator 144 produces a repeating decimal (approximately 0.534722, or 53.4722%).
Working: 77 ÷ 144 = 0.534722 (53.4722%)

Key Values:
- Simplified Fraction: 77/144
- Mixed Number Form: 77/144
- Decimal Value: 0.534722
- Percentage: 53.4722%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-2-9-plus-5-16/
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2/9 + 5/16 = 77/144

Simplified Fraction

77/144

Mixed Number

Proper (77/144)

Decimal Value

0.534722

Percentage

53.4722%

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Step-by-Step Solution: 2/9 + 5/16

Step 1

Find the Least Common Denominator (LCD)

The denominators 9 and 16 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 9 × 16 = 144.

LCD(9, 16) = 144

Step 2

Convert to Equivalent Fractions with Common Denominator 144

Multiply the numerator and denominator of 2/9 by 16, and multiply the numerator and denominator of 5/16 by 9 so both fractions share the common base 144.

2 × 16/9 × 16 = 32/144 and 5 × 9/16 × 9 = 45/144

Step 3

Add the Numerators

Now add the numerators (32 + 45 = 77) and keep the common denominator 144 unchanged.

32 + 45/144 = 77/144

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 77 and 144 is 1, confirming that 77/144 cannot be reduced further—it is already in its simplest irreducible form.

77/144

Step 5

Decimal & Percentage Representation

Dividing the numerator 77 by denominator 144 produces a repeating decimal (approximately 0.534722, or 53.4722%).

77 ÷ 144 = 0.534722 (53.4722%)

Visual Representation

The diagram below illustrates 2/9 plus 5/16 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`77/144`
Mixed Number Form	`77/144`
Decimal Form	`0.534722`
Percentage	`53.4722%`

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Frequently Asked Questions

What is 2/9 plus 5/16 as a fraction?

2/9 + 5/16 in simplest fraction form is 77/144.

What is 2/9 plus 5/16 as a decimal?

2/9 + 5/16 converted to a decimal is 0.534722.

What is 2/9 plus 5/16 as a percentage?

2/9 + 5/16 expressed as a percentage is 53.4722%.

Does 2/9 plus 5/16 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.534722...) because the denominator contains prime factors other than 2 and 5.