4*1/5+4*3/7-4*1/35=
3/2*5/6+3/2:9/10-3/2*13/18=
3/8*5+5/56-1/7:1/5=
4/5:5/8-4/5*24/25+1/25:5/4=
ПОМАГИТЕ СРОЧНО НУЖНО

2

Ответы и объяснения

2014-04-08T15:14:35+04:00
1)(28+60-4)/35=84/35=12/7
2)5/4+5/3-13/12=(15+20-13)/12=22/12=11/6
3)15/8+5/56-5/7=(105+5-40)/56=70/56=5/4
4)32/25-96/125+4/125=(160-96+4)/125=68/125
2014-04-08T15:21:49+04:00
4*1/5+4*3/7-4*1/35= 21/5+ 31/7 - 4/35 = (147 + 155 - 4) /35 = 258/35 = 7 13/35

3/2*5/6+3/2:9/10-3/2*13/18= 3/2 * 5/6 + 3/2 * 10/9 - 3/2 * 13/18 = 15/12 + 30/18 - 39/36 = (45 + 60 - 39) / 36 = 11/6 = 1 5/6

3/8*5+5/56-1/7:1/5= 3/8 * 5/1 + 5/56 - 1/7 * 5/1 = ( 105 + 5 - 40) / 56 = 70/56 = 10/8 =1 1/4

4/5:5/8-4/5*24/25+1/25:5/4= 4/5 * - 4/5 * 24/25 + 1/25 *4/5 = (160 - 96 +4) / 125 = 12/25