# What is 25/9+15/10?

How much is 259 plus 1510. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 7718
• 4 518
• 4.2778 (rounded to 4 decimals)

## Step by step solution

259 + 1510 = 38590

1. ### Find common denominator by finding the Least Common Multiple(LCM)

Multiples of 9 are   9, 18, 27, 36, 45, 54, 63, 72, ..., 90 ....etc

Multiples of 10 are   10, 20, 30, 40, 50, 60, 70, 80, 90 ...etc

The LCM of 9 and 10 is 90. So, the common denominator of 259 and 1510 is 90. Now change the fractions into equivalent fractions with common denominator

• 259 + 1510
• 25 * 109 * 10 + 15 * 910 * 9
• 25090 + 13590

• 25090 + 13590
• 250 + 13590
• 38590

Add the numerators and place the sum over the common denominator.

Simplify

• 38590
• 7718
• 4 518
1. ### Reduce fraction to its lowest terms

• 38590
• 385 ÷ 590 ÷ 5
• 7718

The greatest common divisor of 385 and 90 is 5, the fraction 38590 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 5.

2. ### Convert improper fraction 7718 to mixed number

• 7718
• 4 518

77 divided by 18 is 4 with a remainder of 5