(2 1/4 + 1 1/5)-(2/7+1/2) berapa hasil nya plis jwb

(9/4 + 11/5) - (2/7+1/2)
(9x5/4x5 + 11x4/5x4) - (2x2/7x2+1x7+2x7)
(45/20+44/20) - (4/14+7/14)
89/20 - 11/14
= 89x7/20x7 - 11x10/14x10
= 623/140 - 110/140
= 514/140
= 3 93/140

Semoga membantu :)