Rita finished her chemistry assignment in 7/8 hours. then she completed her math assignment in 1/4 hours. how much more time did rita spend on her chemistry assignment

Rita spend of hour more on her chemistry assignment.

Step-by-step explanation:

Fraction of an hour Rita spent on chemistry assignment =

Fraction of an hour Rita spent on math assignment =

∴ Fraction of  hour Rita spent more on her chemistry assignment than math assignment

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To subtract fractions we take LCD for 4 and 8. Since 8 is the least common multiple for 4 and 8 so, we take LCD= 8

To make the denominators same we need to multiply numerator and denominator of second fraction with 2.

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After making the denominators common, we simply subtract numerators.

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Therefore, Rita spend of hour more on her chemistry assignment.

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: