# What is 21/15+4/3?

How much is 2115 plus 43. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 4115
• 2 1115
• 2.7333 (rounded to 4 decimals)

## Step by step solution

Add

2115 + 43 = 4115

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

Multiples of 15 are   15 ....etc

Multiples of 3 are   3, 6, 9, 12, 15 ...etc

The LCM of 15 and 3 is 15. So, the common denominator of 2115 and 43 is 15. Now change the fractions into equivalent fractions with common denominator

• 2115 + 43
• 21 * 115 * 1 + 4 * 53 * 5
• 2115 + 2015
2. ### Add

• 2115 + 2015
• 21 + 2015
• 4115

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

Simplify

• 4115
• 2 1115
1. ### Reduce fraction to its lowest terms

The greatest common divisor of 41 and 15 is 1, the fraction 4115 cannot be further simplified or reduced to lowest terms

2. ### Convert improper fraction 4115 to mixed number

• 4115
• 2 1115

41 divided by 15 is 2 with a remainder of 11