# 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.