Question 372821
Get fractions in terms of 1/12's
4 2/12 = r + 6 3/12
{{{ 4 = 48/12}}}
{{{6 = 72/12}}}
{{{48/12 + 2/12  = r + 72/12 + 3/12}}}
{{{50/12 = r + 75/12}}}
{{{r = 50/12 - 75/12}}}
{{{r = - 25/12}}}
check answer:
{{{-25/12}}} = -2 1/12
4 2/12 = r + 6 3/12
4 2/12 = -2 1/12 + 6 3/12
4 + 2 - 6 = 3/12 - 1/12 - 2/12
0 = 3/12 - 3/12
0 = 0
OK