127/170 subtracted by 15/3 in Fraction Form

The result of 127/170 subtracted by 15/3 is: -5 127/170

Step-by-Step Solution

Step 1: Understand the Problem

We need to subtract the fraction $\frac{1}{5} 3$ from $\frac{1}{2} 7170$ .

Step 2: Find the Least Common Multiple (LCM)

To subtract fractions, we need a common denominator. The LCM of 170 and 3 is 510.

Step 3: Convert Fractions to Equivalent Fractions

Convert $\frac{1}{2} 7170$ to $\frac{381}{5} 10$
Convert $\frac{1}{5} 3$ to $\frac{2550}{5} 10$

Step 4: Subtract the Numerators

Subtract the numerators: 381 - 2550 = -2169

Step 5: Simplify the Fraction

We can simplify $\frac{-}{2} 169510$ to its lowest form.
The greatest common divisor (GCD) of -2169 and 510 is 3.
Dividing both numerator and denominator by the GCD, we get $\frac{-}{7} 23170$ .

Step 6: Convert to Mixed Number

The fraction $\frac{-}{7} 23170$ can be written as the mixed number $- 5 \frac{1}{2} 7170$ .

Final Answer

The result of 127/170 subtracted by 15/3 is:

\frac{127}{170} - \frac{15}{3} = - 5 \frac{1}{2} 7170

Understanding Fraction Subtraction

How to Subtract Fractions

To subtract fractions, you need to ensure they have a common denominator. Then subtract the numerators:

$\frac{a}{b} - \frac{c}{d} = \frac{a d - b c}{b d}$ (when denominators are different)

Or simply $\frac{a}{b} - \frac{c}{b} = \frac{a - c}{b}$ (when denominators are the same)

Why Simplify Fractions?

Simplifying fractions makes them easier to work with and understand. A fraction is in its simplest form when the numerator and denominator have no common factors other than 1.

To simplify a fraction, divide both the numerator and denominator by their greatest common divisor (GCD).

Fraction Calculator

Calculate operations between any two fractions: