Question 68559
Subtraction of dissimilar fractions
1. Find the LCD of the fractions
  --> 10 = 2 · 5
  --> 12 = 2 · 2 · 3
<br>The LCD = 2 · 2 · 3 · 5
        = 60
<br>2. Make an equivalent fraction of {{{9/10}}} and {{{4/12}}} having the same denominator.
{{{54/60}}} - {{{20/60}}}
<br> = {{{34/60}}}
= {{{highlight (17/30)}}}