# What is 21/4+9/9?

How much is 214 plus 99. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 254
• 6 14
• 6.25

## Step by step solution

214 + 99 = 22536

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

Multiples of 4 are   4, 8, 12, 16, 20, 24, 28, 32, 36 ....etc

Multiples of 9 are   9, 18, 27, 36 ...etc

The LCM of 4 and 9 is 36. So, the common denominator of 214 and 99 is 36. Now change the fractions into equivalent fractions with common denominator

• 214 + 99
• 21 * 94 * 9 + 9 * 49 * 4
• 18936 + 3636

• 18936 + 3636
• 189 + 3636
• 22536

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

Simplify

• 22536
• 254
• 6 14
1. ### Reduce fraction to its lowest terms

• 22536
• 225 ÷ 936 ÷ 9
• 254

The greatest common divisor of 225 and 36 is 9, the fraction 22536 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 9.

2. ### Convert improper fraction 254 to mixed number

• 254
• 6 14

25 divided by 4 is 6 with a remainder of 1