What is 24/8-2/21?

How much is 248 minus 221. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • 6121
  • 2 1921
  • 2.9048 (rounded to 4 decimals)

Step by step solution

Subtract

248 - 221 = 488168

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

    Multiples of 8 are   8, 16, 24, 32, 40, 48, 56, 64, ..., 168 ....etc

    Multiples of 21 are   21, 42, 63, 84, 105, 126, 147, 168 ...etc

    The LCM of 8 and 21 is 168. So, the common denominator of 248 and 221 is 168. Now change the fractions into equivalent fractions with common denominator

    • 248 - 221
    • 24 * 218 * 21 - 2 * 821 * 8
    • 504168 - 16168
  2. Subtract

    • 504168 - 16168
    • 504 - 16168
    • 488168

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

Simplify

  • 488168
  • 6121
  • 2 1921
  1. Reduce fraction to its lowest terms

    • 488168
    • 488 ÷ 8168 ÷ 8
    • 6121

    The greatest common divisor of 488 and 168 is 8, the fraction 488168 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 8.

  2. Convert improper fraction 6121 to mixed number

    • 6121
    • 2 1921

    61 divided by 21 is 2 with a remainder of 19