7/9乘7+2/9=1/3+3/4乘1.6=1-5/9乘5/7=0.06乘(5-2/3)=2/3-2.4乘7/36=答案要是分数7/9乘7+2/9=1/3+3/4乘1.6=1-5/9乘5/7=0.06乘(5-2/3)=2/3-2.4乘7/36=答案要是分数

Question

7/9乘7+2/9= 1/3+3/4乘1.6= 1-5/9乘5/7= 0.06乘(5-2/3)= 2/3-2.4乘7/36= 答案要是分数
7/9乘7+2/9= 1/3+3/4乘1.6= 1-5/9乘5/7= 0.06乘(5-2/3)= 2/3-2.4乘7/36= 答案要是分数

Answer 1

(7/9)x7+2/9=(1/9)x(7x7+2)=51/9=17/3
1/3+(3/4)x1.6=1/3+3x0.4=23/15
1-(5/9)x(5/7)=1-25/63=38/63
0.06x(5-2/3)=0.3-0.02x2=0.26=13/50
2/3-2.4x(7/36)=2/3-2x(7/30)=10/15-7/15=1/5