Пошаговое объяснение:
1)
а) 4/5 + 7/40 = 39/40
б) 6/7 - 1/2 = 5/14
в) 5 - 4 6/11 = 5/11
г) 1 15/16 + 7 1/6 = 8 53/48 = 9 5/48
д) 4 7/12 - 1 7/30 = 3,35
е) 2 3/25 - 1 7/15 = 49/75
2)
а) 9/26 * 13/45 = 117/1170 = 0,1
б) 49/18 * 9/19 * 38*7 = 16758/2394 = 7
в) 5 * 7/15 = 35/15 = 2 1/3
г) 1 2/9 * 1 8/11 = 209/99 = 2 1/9
a) 4/5+7/40=32/40+7/40= 39/40
б)6/7-1/2=12/14-7/14=5/14
в) 5-4 6/11=5-50/11=55/11-50/11=5/11
г) 1 15/16 + 7 1/6 = 31/16+43/6=93/48+344/48=437/48=9 5/48
д) 4 7/12 - 1 7/30= 55/12-37/30=275/60-74/60=201/60=67/20=3,35
е) 2 3/35 - 1 7/15= 53/25-22/15=159/75-110/75=49/75
Пошаговое объяснение:
1)
а) 4/5 + 7/40 = 39/40
б) 6/7 - 1/2 = 5/14
в) 5 - 4 6/11 = 5/11
г) 1 15/16 + 7 1/6 = 8 53/48 = 9 5/48
д) 4 7/12 - 1 7/30 = 3,35
е) 2 3/25 - 1 7/15 = 49/75
2)
а) 9/26 * 13/45 = 117/1170 = 0,1
б) 49/18 * 9/19 * 38*7 = 16758/2394 = 7
в) 5 * 7/15 = 35/15 = 2 1/3
г) 1 2/9 * 1 8/11 = 209/99 = 2 1/9
a) 4/5+7/40=32/40+7/40= 39/40
б)6/7-1/2=12/14-7/14=5/14
в) 5-4 6/11=5-50/11=55/11-50/11=5/11
г) 1 15/16 + 7 1/6 = 31/16+43/6=93/48+344/48=437/48=9 5/48
д) 4 7/12 - 1 7/30= 55/12-37/30=275/60-74/60=201/60=67/20=3,35
е) 2 3/35 - 1 7/15= 53/25-22/15=159/75-110/75=49/75
Пошаговое объяснение: