how do you solve 3 1/2 + 4 2/3 + 7 1/4 ?

Question

This question has me stuck . I forgot how to solve 3 equations with different a dominator . Please explain ! Thank you (:

Answer 1

3.5 +4.66666...+7.25

=(3+4+7)+(0.5+0.25) +2/3

=14+0.75+0.666666666666...

=14+1.4166666666

=15.4166666666666...

or 15+5/12

##### yu kood tri (3/4)+(2/3)=(9/12)+(8/12)=17/12...1+5/12

Answer 2

change the 3 mixed form of fractions into improper fraction first.

3 1/2 = 7/2

4 2/3 = 14/3

7 1/4 = 29/4

use 12 as your LCD or least common denominator

e.g 7/2 = 42/12

how did i get the numerator 42? here's how. divide 2 from 12 which is 6 then multiply it to 7 equals 42.

now, lets proceed to the equation

42 + 56 + 87

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 12

is equal to 185/12. then convert it again to mixed fraction.

equals to 15 5/12

i hope it will help.