# What is 9/30-12/29?

How much is 930 minus 1229. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• - 33290
• 0.1138 (rounded to 4 decimals)

## Step by step solution

Subtract

930 - 1229 = - 99870

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

Multiples of 30 are   30, 60, 90, 120, 150, 180, ..., 870 ....etc

Multiples of 29 are   29, 58, 87, 116, 145, 174, ..., 870 ...etc

The LCM of 30 and 29 is 870. So, the common denominator of 930 and 1229 is 870. Now change the fractions into equivalent fractions with common denominator

• 930 - 1229
• 9 * 2930 * 29 - 12 * 3029 * 30
• 261870 - 360870
2. ### Subtract

• 261870 - 360870
• 261 - 360870
• - 99870

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

Simplify

• - 99870
• - 33290
1. ### Reduce fraction to its lowest terms

• - 99870
• - 99 ÷ 3870 ÷ 3
• - 33290

The greatest common divisor of 99 and 870 is 3, the fraction - 99870 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 3.