Calculate 1/2+4/5
Add, subtract, multiply, or divide fractions and mixed numbers with step-by-step solutions.
1/2 + 4/5
The denominators are different (2 and 5). Find the Least Common Denominator:
LCD(2, 5) = 10
Rewrite each fraction with denominator 10:
= (1×5)/(2×5) + (4×2)/(5×2)
= 5/10 + 8/10
Now the denominators match. Add the numerators:
= (5 + 8)/10
= 13/10
= 13/10 (= 1.3 as a decimal)
How to calculate 1/2+4/5
To calculate 1/2+4/5, find the least common denominator (LCD), rewrite each fraction with that denominator, perform the operation on the numerators, and simplify the result to lowest terms.
This is a fraction arithmetic problem — we perform operations on fractions by finding common denominators for addition/subtraction, or multiplying straight across for multiplication/division.
Frequently asked questions
What is the answer to 1/2+4/5?
The answer is 13/10.
What method is used?
finding the LCD, rewriting fractions with that denominator, performing the operation on numerators, and simplifying the result.