Answer:
She put 7/24 extra cups of sugar
Step-by-step explanation:
we know that
To find out how many extra cups did she put in, subtract three and five sixths cups of sugar from three and nine eighths cups of sugar.
so
[tex]3\frac{9}{8}-3\frac{5}{6}[/tex]
Convert mixed number to an improper fraction
[tex]3\frac{9}{8}\ cups=\frac{3*8+9}{8}=\frac{33}{8}\ cups[/tex]
[tex]3\frac{5}{6}\ cups=\frac{3*6+5}{6}=\frac{23}{6}\ cups[/tex]
The LCM between 8 and 6 is 24
substitute the values
[tex]\frac{33}{8}-\frac{23}{6}=\frac{33*3-23*4}{24}=\frac{7}{24}\ cups[/tex]
therefore
She put 7/24 extra cups of sugar
