Question

выполни действия 81:9+26*6-144:72 ; 4*18-9-32:8+111*8 ; (25*3:15)*(48*2:16) ; (12*7:42)*(16*6:24) пожалуйста по действиям

Answer 1

81 : 9 + 26* 6- 144: 72 = 163
1) 81 : 9 = 9
2) 26 * 6 = 156
3) 144 : 72 = 2
4) 9 + 156 = 165
5) 165 - 2 = 163
-----------------------------------------
4 * 18 - 9 - 32 : 8 + 111 * 8 = 947
1) 4 * 18 = 72
2) 32 : 8 = 4
3) 111 * 8 = 888
4) 72 - 9 = 63
5) 63 - 4 = 59
6) 59 + 888 = 947
--------------------------------------
(25 * 3 : 15) * (48 * 2 : 16) = 30
1) 25 * 3 = 75
2) 75 : 15 = 5
3) 48 * 2 = 96
4) 96 : 16 = 6
5) 5 * 6 = 30
-------------------------------
(12 * 7 : 42) * (16 * 6 : 24) = 8
1) 12 * 7 = 84
2) 84 : 42 = 2
3) 16 * 6 = 96
4) 96 : 24 = 4
5) 2 * 4 = 8

Answer 2

1. $frac{81}{9}+26*6-frac{144}{72}=9+156-2=165-2=163;$

2. $4*18-9-frac{32}{8}+111*8=72-9-4+888=72+888-9-4=960-13=947;$

3. $(frac{25*3}{15})(frac{48*2}{16})=(frac{25*1}{5})(frac{48*1}{8})=(frac{5*1}{1})(frac{6*1}{1})=5*6=30;$

4. $(frac{12*7}{42})(frac{16*6}{24})=(frac{12*1}{6})(frac{16*1}{4})=(frac{2*1}{1})(frac{4*1}{1})=2*4=8.$