№6 5+7/14=12/14=6/7
156-39/390=117/390=39/130
72+48/720=120/720=30/180=3/18=1/6
52-12/12=40/12=10/3=3 1/3
639+207/639=846/639=94/71=1 23/71
11*25-7*25/25*44-25*14=275-175/1100-350=100/750=10/75=2/5
37*8/37*16+37*4=296/592+148=296/740=74/185
9*4+6*4/8*81-8*56=36+24/648-448=60/200=6/20=3/10
12*5-12*3/12*4=60-36/48=24/48=1/2
2*24+5*6/25*64-25*4=48+30/1600-100=78/1500=26/500=13/250
64*8+64*10/32*24+32*48=512+640/768+1536=1152/2304=128/256=16/32=1/2
61*2+61*30/61+61*3=122+1830/61+183=1952/244=488/61=8