tolong di jawab ya bskk dikumpulinn!!

7 1/2 - 2 1/4 - 3 2/3
= 15/2 - 9/4 - 11/3
= 90/12 - 27/12 - 44/12
= 19/12
= 1 7/12

7 1/2=15/2
2 1/4=9/4
3 2/3=11/3

=penyebut nya harus sama

2|4|3
2--------
1|2|3
2--------
1|1|3
3--------
1|1|1

=.../12-.../12-..../12

=15/2=15×(12÷2)==90/12
=9/4=9×(12÷4)=27/12
=11/3=11×(12÷3)=44/12

90-27-44=19

=19/12