Solve 2/3 - 1/6 - 3/12: Complete Fraction Subtraction Guide

Question

2316312= \frac{2}{3}-\frac{1}{6}-\frac{3}{12}=

Video Solution

Solution Steps

00:00 Solve
00:02 We want to find the least common denominator
00:05 Therefore we'll multiply 4, 2 respectively to find the common denominator 12
00:08 Remember to multiply both numerator and denominator
00:23 Let's calculate the multiplications
00:36 Subtract under the common denominator
00:42 Calculate the numerator
00:48 Reduce the fraction as much as possible
00:54 Remember to divide both numerator and denominator
00:58 And this is the solution to the question

Step-by-Step Solution

Let's try to find the least common denominator between 3, 6, and 12

To find the least common denominator, we need to find a number that is divisible by 3, 6, and 12

In this case, the common denominator is 12

Now we'll multiply each fraction by the appropriate number to reach the denominator 12

We'll multiply the first fraction by 4

We'll multiply the second fraction by 2

We'll multiply the third fraction by 1

2×43×41×26×23×112×1=812212312 \frac{2\times4}{3\times4}-\frac{1\times2}{6\times2}-\frac{3\times1}{12\times1}=\frac{8}{12}-\frac{2}{12}-\frac{3}{12}

Now let's subtract:

82312=6312=312 \frac{8-2-3}{12}=\frac{6-3}{12}=\frac{3}{12}

Let's divide both numerator and denominator by 3 and we get:

3:312:3=14 \frac{3:3}{12:3}=\frac{1}{4}

Answer

14 \frac{1}{4}