0.14*5/7+3/5*0.625= (7/10+5/6+4/5）*30= 5/9*0.2+（7.2*1/20-6÷50) 3.6*[2 ÷（4/5-0.6）]

0.14*5/7+3/5*0.625=0.1+3/5×5/8=0.1+3/8=0.475(7/10+5/6+4/5）*30=7/10×30+5/6×30+4/5×30=21+25+24=705/9*0.2+（7.2*1/20-6÷50)=5/9×1/5+0.36-0.12=1/9+0.24=79/2253.6*[2 ÷（4/5-0.6）]=3.6×2×(4/5-3/5)=...