Question 459250
Find the difference
{{{ 7/8 - 3/5 }}}
Multiply the 1st fraction by {{{5/5}}} which is just {{{1}}}
Multiply the 2nd fraction by {{{ 8/8 }}} which is also {{{1}}}
{{{ (5/5)*(7/8) - (8/8)*(3/5) }}}
{{{ 35/40 - 24/40 }}}
{{{ 11/40 }}} miles
This is how much further D. walked than S.
You can check using decimals
{{{ 7/8 = .875 }}}
{{{ 3/5 = .6 }}}
{{{ .875 - .6 = .275 }}}
On my calculator:
{{{ 11/40 = .275 }}}
OK