# What is 5/1-24/21?

How much is 51 minus 2421. Step by step solution expressed as a proper or improper fraction, mixed number and decimal form.

• 277
• 3 67
• 3.8571 (rounded to 4 decimals)

## Step by step solution

Subtract

51 - 2421 = 8121

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

Multiples of 1 are   1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ..., 21 ....etc

Multiples of 21 are   21 ...etc

The LCM of 1 and 21 is 21. So, the common denominator of 51 and 2421 is 21. Now change the fractions into equivalent fractions with common denominator

• 51 - 2421
• 5 * 211 * 21 - 24 * 121 * 1
• 10521 - 2421
2. ### Subtract

• 10521 - 2421
• 105 - 2421
• 8121

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

Simplify

• 8121
• 277
• 3 67
1. ### Reduce fraction to its lowest terms

• 8121
• 81 ÷ 321 ÷ 3
• 277

The greatest common divisor of 81 and 21 is 3, the fraction 8121 can be simplified or reduced to lowest terms by dividing the numerator and denominator by 3.

2. ### Convert improper fraction 277 to mixed number

• 277
• 3 67

27 divided by 7 is 3 with a remainder of 6