# What is 23/8+21/20?

How much is 238 plus 2120. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 15740
• 3 3740
• 3.925

## Step by step solution

238 + 2120 = 15740

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

Multiples of 8 are   8, 16, 24, 32, 40 ....etc

Multiples of 20 are   20, 40 ...etc

The LCM of 8 and 20 is 40. So, the common denominator of 238 and 2120 is 40. Now change the fractions into equivalent fractions with common denominator

• 238 + 2120
• 23 * 58 * 5 + 21 * 220 * 2
• 11540 + 4240

• 11540 + 4240
• 115 + 4240
• 15740

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

Simplify

• 15740
• 3 3740
1. ### Reduce fraction to its lowest terms

The greatest common divisor of 157 and 40 is 1, the fraction 15740 cannot be further simplified or reduced to lowest terms

2. ### Convert improper fraction 15740 to mixed number

• 15740
• 3 3740

157 divided by 40 is 3 with a remainder of 37