# What is 24/9-25/7?

How much is 249 minus 257. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• - 1921
• 0.9048 (rounded to 4 decimals)

## Step by step solution

Subtract

249 - 257 = - 5763

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

Multiples of 9 are   9, 18, 27, 36, 45, 54, 63 ....etc

Multiples of 7 are   7, 14, 21, 28, 35, 42, 49, 56, 63 ...etc

The LCM of 9 and 7 is 63. So, the common denominator of 249 and 257 is 63. Now change the fractions into equivalent fractions with common denominator

• 249 - 257
• 24 * 79 * 7 - 25 * 97 * 9
• 16863 - 22563
2. ### Subtract

• 16863 - 22563
• 168 - 22563
• - 5763

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

Simplify

• - 5763
• - 1921
1. ### Reduce fraction to its lowest terms

• - 5763
• - 57 ÷ 363 ÷ 3
• - 1921

The greatest common divisor of 57 and 63 is 3, the fraction - 5763 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 3.