Ж) 7/11 * (3/7 + 5/7) = 7/11 * 8/7 = 8/11
1) 3/7 + 5/7 = 8/7
2) 7/11 * 8/7 = (1*8)/(11*1) = 8/11
з) (7/12 - 3/16 - 5/24) + 1/4 = 7/16
1) 7/12 - 3/16 = 28/48 - 9/48 = 19/48
2) 19/48 - 5/24 = 19/48 - 10/48 = 9/48 = 3/16
3) 3/16 + 1/4 = 3/16 + 4/16 = 7/16
<span>1) -0,25 - 3 целых 1/2 = -3 целых 3/4 = 3,75
2)</span> <span>-3 - 2 - 2 целых 3/5 = -7 целых 3/5 = -7,6
3) </span><span>-16 целых 8/25 - 7,3 = -23 целых 31/50 = -23,62</span>
140
а)1/2=0,5
б)1/10=0,1
в)2/5=0,4
г)1/4=0,25
д)1/6=0,16
е)1/3=0,33
ж)7/12=0,58
з)7/10=0,7
141
а)1,2=1 1/5
б)2,5=2 1/2
в)10,75=10 3/4
г)1,66=1 2/3
д)3,83=3 5/6
е)2,8=2 4/5
6 * 4^3 - (44^2:11)^2:242 = 128
1) 44^2:11 = 176
2) 6 * 4^3 = 384
3) 176 * 176 = 30 976
4) 30 976 : 242 = 128