What is 7/5-19/10?

How much is 75 minus 1910. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • - 12
  • 0.5

Step by step solution

Subtract

75 - 1910 = - 510

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

    Multiples of 5 are   5, 10 ....etc

    Multiples of 10 are   10 ...etc

    The LCM of 5 and 10 is 10. So, the common denominator of 75 and 1910 is 10. Now change the fractions into equivalent fractions with common denominator

    • 75 - 1910
    • 7 * 25 * 2 - 19 * 110 * 1
    • 1410 - 1910
  2. Subtract

    • 1410 - 1910
    • 14 - 1910
    • - 510

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

Simplify

  • - 510
  • - 12
  1. Reduce fraction to its lowest terms

    • - 510
    • - 5 ÷ 510 ÷ 5
    • - 12

    The greatest common divisor of 5 and 10 is 5, the fraction - 510 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 5.