1)3,12:0,6+24:0,75-8:25+28:0,35= 2)(56,42:1,4-1,536:0,32)*2,1-6,8= 3)120-(7,0056:0,072+14,62)= 4)(4*1,125-4,5)*6,84+(3,54+1,824):0,76=

3,12 / 0,6 + 24 / 0,75 – 8 / 25 + 28 / 0,35 = 116,883,12/0,6=5,224/0,75=328/25=0,3228/0,35=805,2+32=37,237,2-0,32=36,8836,88+80=116,88(56,42 / 1,4 – 1,536 / 0,32) * 2,1 – 6,8 = 67,7556,42/1,4=40,31,536/0,32=4,840,3-4,8=35,535,5*2,1=74,5574,55-6,8=67,75120 – (7,0056 / 0,072 + 14,62) = 8,087,0056/0,072=97,397,3+14,62=111,92120-111,92=8,08(4 * 1,125 – 4,5) * 6,84 + (3,54 + 1,824) / 0,76 = 7,0578947374*1,125=4,53,54+1,824=5,3644,5-4,5=00*6,84=05,364/0,76=7,0578947370+7,057894737=7,057894737