What is 4/19-8/1?

How much is 419 minus 81. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • - 14819
  • - 7 1519
  • 7.7895 (rounded to 4 decimals)

Step by step solution

Subtract

419 - 81 = - 14819

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

    Multiples of 19 are   19 ....etc

    Multiples of 1 are   1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ..., 19 ...etc

    The LCM of 19 and 1 is 19. So, the common denominator of 419 and 81 is 19. Now change the fractions into equivalent fractions with common denominator

    • 419 - 81
    • 4 * 119 * 1 - 8 * 191 * 19
    • 419 - 15219
  2. Subtract

    • 419 - 15219
    • 4 - 15219
    • - 14819

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

Simplify

  • - 14819
  • - 7 1519
  1. Reduce fraction to its lowest terms

    The greatest common divisor of 148 and 19 is 1, the fraction - 14819 cannot be further simplified or reduced to lowest terms

  2. Convert improper fraction - 14819 to mixed number

    • - 14819
    • - 7 1519

    148 divided by 19 is 7 with a remainder of 15