What is 15/7-15/6?

How much is 157 minus 156. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

  • - 514
  • 0.3571 (rounded to 4 decimals)

Step by step solution

Subtract

157 - 156 = - 1542

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

    Multiples of 7 are   7, 14, 21, 28, 35, 42 ....etc

    Multiples of 6 are   6, 12, 18, 24, 30, 36, 42 ...etc

    The LCM of 7 and 6 is 42. So, the common denominator of 157 and 156 is 42. Now change the fractions into equivalent fractions with common denominator

    • 157 - 156
    • 15 * 67 * 6 - 15 * 76 * 7
    • 9042 - 10542
  2. Subtract

    • 9042 - 10542
    • 90 - 10542
    • - 1542

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

Simplify

  • - 1542
  • - 514
  1. Reduce fraction to its lowest terms

    • - 1542
    • - 15 ÷ 342 ÷ 3
    • - 514

    The greatest common divisor of 15 and 42 is 3, the fraction - 1542 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 3.