# What is 5/1-23/20?

How much is 51 minus 2320. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 7720
• 3 1720
• 3.85

## Step by step solution

Subtract

51 - 2320 = 7720

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

Multiples of 1 are   1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ..., 20 ....etc

Multiples of 20 are   20 ...etc

The LCM of 1 and 20 is 20. So, the common denominator of 51 and 2320 is 20. Now change the fractions into equivalent fractions with common denominator

• 51 - 2320
• 5 * 201 * 20 - 23 * 120 * 1
• 10020 - 2320
2. ### Subtract

• 10020 - 2320
• 100 - 2320
• 7720

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

Simplify

• 7720
• 3 1720
1. ### Reduce fraction to its lowest terms

The greatest common divisor of 77 and 20 is 1, the fraction 7720 cannot be further simplified or reduced to lowest terms

2. ### Convert improper fraction 7720 to mixed number

• 7720
• 3 1720

77 divided by 20 is 3 with a remainder of 17