segunda tarea salon 1-5

1.1._(3/5)/(16/9)=(27/80)(-2)=(-27/40)+12=507/40(-2)=-1014/40-36=-426/40

1.2._(3/5)/(16/9)=(27/80)(2)=(54/80)+12=1010/80(2)=2020/80-36=-860/80

2.1._-13(-3)=39-35=+2/7-15/8=-89/56+4=313/56

2.2._-13(3)=-39-35=-74+2/7-15/8=-74+-89/56=-4233/56

3.1._21(-4)-16(-4)=- -84-64=20-18=2+23=25-65=-40+79=39--180=219

3.2._21(5)-16(5)=105-80=25-18=7+23=30-65=-35+79=44-45(5)=44-225=-181

4.1._(9/8)(7/14)=(63/112)/(23/6)=(378/2576)(-6/1)=2268/2576+-6/5=26790/12880=2.0799-19=-16.92

4.2._9/8(7/14)=(63/112)/(23/6)=(378/2576)(3/1)=1134/2576+1/5(3/1)=-17.959

primer tarea 1-5

Respuestas:

1.(6)(-5)=(-30)(-2)=(60)(3)=(180)(-7)=(-1260)(8)=-10080
2.(-25)(3)=-75+2-73+4=-69-7=-76-12=-88+45=-43-33=-76+75=-1
3.-134-12=-146+13=-133+54=-79-65=144+67=77(2)=154(3)=462(4)=1848
4.12-44=-32+36=4-76=-72+89=17-55=-38+243=205-74=131
5.(6)(-4)=(-24)(5)=(120)(-6)=(720)(7)=(5040)(-8)=(-40320)(9)=(-362880)(0)=0
6.72/15+32/99=7128+480/1485=7608/1485=2536/495
7.28+45/6=73/6-6/4=292-36-24=256/24=128/12=32/3
10.(72/48 :25/4=288/1200)+(585/90)=25920+702000/10800=727920/108000-16/4=2911680-1728000/432000=1183680/432000
11.1485/204+3/5=7425+612/1020=8037/1020-18/7=56259-18360/7140=73899/7140+16/9=341091+114240/64260=455331/64260-25/5=227655-1606500/3213000=670155/3213000