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