解:11/12+15/16+8/15等于( 2.3875 )
∵已知需求出11/12+15/16+8/15等于多少
∴11/12 + 15/16 + 8/15
= (11×20)/(12×20)+(15×15)/(16×15)+ (8×16)/( 15×16)
= 220/240 + 225/240 + 128/240
= 445/240 + 128/240
= 573/240
= 191/80
= 2.3875
答:11/12+15/16+8/15等于2.3875
11/12+15/16+8/15
≈0.9167+0.9375+0.5333
=2.3875