What is 23/8-21/20?

How much is 238 minus 2120. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • 7340
  • 1 3340
  • 1.825

Step by step solution

Subtract

238 - 2120 = 7340

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

    Multiples of 8 are   8, 16, 24, 32, 40 ....etc

    Multiples of 20 are   20, 40 ...etc

    The LCM of 8 and 20 is 40. So, the common denominator of 238 and 2120 is 40. Now change the fractions into equivalent fractions with common denominator

    • 238 - 2120
    • 23 * 58 * 5 - 21 * 220 * 2
    • 11540 - 4240
  2. Subtract

    • 11540 - 4240
    • 115 - 4240
    • 7340

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

Simplify

  • 7340
  • 1 3340
  1. Reduce fraction to its lowest terms

    The greatest common divisor of 73 and 40 is 1, the fraction 7340 cannot be further simplified or reduced to lowest terms

  2. Convert improper fraction 7340 to mixed number

    • 7340
    • 1 3340

    73 divided by 40 is 1 with a remainder of 33