# What is 20/15-3/17?

How much is 2015 minus 317. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 5951
• 1 851
• 1.1569 (rounded to 4 decimals)

## Step by step solution

Subtract

2015 - 317 = 295255

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

Multiples of 15 are   15, 30, 45, 60, 75, 90, 105, ..., 255 ....etc

Multiples of 17 are   17, 34, 51, 68, 85, 102, 119, ..., 255 ...etc

The LCM of 15 and 17 is 255. So, the common denominator of 2015 and 317 is 255. Now change the fractions into equivalent fractions with common denominator

• 2015 - 317
• 20 * 1715 * 17 - 3 * 1517 * 15
• 340255 - 45255
2. ### Subtract

• 340255 - 45255
• 340 - 45255
• 295255

Subtract the numerators and place the difference over the common denominator.

Simplify

• 295255
• 5951
• 1 851
1. ### Reduce fraction to its lowest terms

• 295255
• 295 ÷ 5255 ÷ 5
• 5951

The greatest common divisor of 295 and 255 is 5, the fraction 295255 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 5.

2. ### Convert improper fraction 5951 to mixed number

• 5951
• 1 851

59 divided by 51 is 1 with a remainder of 8