4. 27/40
Пошаговое объяснение:
1) 3. 2/5 * 5/34 = 17/5 * 5/34 = 17/34 = 1/2
2) 3. 3/8 + 1. 4/5 =
3. 15/40 + 1. 32/40 = 4. 47/40 = 5. 7/40
4) 5. 7/40 - 1/2 =
5. 7/40 - 20/40 =
4. 47/40 - 20/40 = 4. 27/40
3 3/8+1 4/5-3 2/5*5/34=
1)3 2/5*5/34=17/5*5/34=85/170=1/2
2)3 3/8+1 4/5=3 16/40+1 32/40=4 47/40=5 7/40
3)5 7/40-1/2=5 7/40-20/40=4 47/40-20/40=4 27/40
4. 27/40
Пошаговое объяснение:
1) 3. 2/5 * 5/34 = 17/5 * 5/34 = 17/34 = 1/2
2) 3. 3/8 + 1. 4/5 =
3. 15/40 + 1. 32/40 = 4. 47/40 = 5. 7/40
4) 5. 7/40 - 1/2 =
5. 7/40 - 20/40 =
4. 47/40 - 20/40 = 4. 27/40
3 3/8+1 4/5-3 2/5*5/34=
1)3 2/5*5/34=17/5*5/34=85/170=1/2
2)3 3/8+1 4/5=3 16/40+1 32/40=4 47/40=5 7/40
3)5 7/40-1/2=5 7/40-20/40=4 47/40-20/40=4 27/40
Пошаговое объяснение: