3 завдання( можна з поясненням)

(2 1/6 - 3 3/8) * 24 + 1 1/8 : (-3 3/4) = - 29,3

1) 2 1/6 - 3 3/8 = 2 4/24 - 3 9/24 = (-1 5/24)
2) (-1 5/24) * 24 = (-29/24) * 24 = - 29
3) 1 1/8 : (-3 3/4) = 9/8 : (-15/4) = 9/8 * (-4/15) = - (3*1)/(2*5) = - 3/10 = - 0,3
4) (-29) + (-0,3) = - (29 + 0,3) = - 29,3 

Пояснения: 
1) Общий знаменатель 24
24 : 6 = 4 - доп.множ. к 1/6 = (1*4)/(6*4) = 4/24
24 : 8 = 3 - доп.множ. к 3/8 = (3*3)/(8*3) = 9/24
2) 1 5/24 = (1*24+5)/24 = 29/24 - смешанное число перевели в неправильную дробь
3) 1 1/8 = (1*8+1)/8 = 9/8 - неправильная дробь
3 3/4 = (3*4+3)/4 = 15/4 - неправильная дробь  

6×4=24 км Error occurred in script: WailaPE Mod.js org.mozilla.javascript.WrappedException: Wrapped java.lang.RuntimeException: getName called with invalid item ID: -1 (WailaPE Mod.js#5) at org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Unknown Source) at org.mozilla.javascript.MemberBox.invoke(Unknown Source) at org.mozilla.javascript.FunctionObject.call(Unknown Source) at org.mozilla.javascript.Interpreter.interpretLoop(Unknown Source) at script.modTick(WailaPE Mod.js:5) at org.mozilla.javascript.Interpreter.interpret(Unknown Source) at org.mozilla.javascript.InterpretedFunction.call(Unknown Source) at org.mozilla.javascript.ContextFactory.doTopCall(Unknown Source) at org.mozilla.javascript.ScriptRuntime.doTopCall(Unknown Source) at org.mozilla.javascript.InterpretedFunction.call(Unknown Source) at net.zhuoweizhang.mcpelauncher.ScriptManager.callScriptMethod(ScriptManager.java:278) at net.zhuoweizhang.mcpelauncher.ScriptManager.tickCallback(ScriptManager.java:407) Caused by: java.lang.RuntimeException: getName called with invalid item ID: -1 at net.zhuoweizhang.mcpelauncher.ScriptManager$NativeItemApi.getName(ScriptManager.java:3249) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) ... 10 more