Выражение: 35/8-23/4+1/4
Ответ: -1.125
Решаем по действиям:1.) 35/8=4.375 35|8_ _ 3_2_|4.375 30 2_4_ 60 5_6_ 40 4_0_ 02.) 23/4=5.75 23|4_ _ 2_0_|5.75 30 2_8_ 20 2_0_ 03.) 4.375-5.75=-1.375 -5.750 _4_._3_7_5_ -1.3754.) 1/4=0.25 1.0|4_ _ 8_|0.25 20 2_0_ 05.) -1.375+0.25=-1.125 -1.375 _0_._2_5_0_ -1.125
Решаем по шагам:1.) 4.375-23/4+1/4 1.1. 35/8=4.375 35|8_ _ 3_2_|4.375 30 2_4_ 60 5_6_ 40 4_0_ 02.) 4.375-5.75+1/4 2.1. 23/4=5.75 23|4_ _ 2_0_|5.75 30 2_8_ 20 2_0_ 03.) -1.375+1/4 3.1. 4.375-5.75=-1.375 -5.750 _4_._3_7_5_ -1.3754.) -1.375+0.25 4.1. 1/4=0.25 1.0|4_ _ 8_|0.25 20 2_0_ 05.) -1.125 5.1. -1.375+0.25=-1.125 -1.375 _0_._2_5_0_ -1.125