What is 22/21-4/15?

How much is 2221 minus 415. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • 82105
  • 0.781 (rounded to 4 decimals)

Step by step solution

Subtract

2221 - 415 = 82105

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

    Multiples of 21 are   21, 42, 63, 84, 105 ....etc

    Multiples of 15 are   15, 30, 45, 60, 75, 90, 105 ...etc

    The LCM of 21 and 15 is 105. So, the common denominator of 2221 and 415 is 105. Now change the fractions into equivalent fractions with common denominator

    • 2221 - 415
    • 22 * 521 * 5 - 4 * 715 * 7
    • 110105 - 28105
  2. Subtract

    • 110105 - 28105
    • 110 - 28105
    • 82105

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

Simplify

  • 82105
  1. Reduce fraction to its lowest terms

    The greatest common divisor of 82 and 105 is 1, the fraction 82105 cannot be further simplified or reduced to lowest terms