9.8的0.7倍是:
9.8*0.7=6.86
所以
9.8的0.7倍是6.86
解:9.8的0.7倍是( 6.86 )
∵已知需求出9.8的0.7倍是多少
∴9.8的0.7倍
= 9.8 × 0.7
= (9×10+8)/10 × 7/10
= 98/10 × 7/10
= (98×7)/(10×10)
= 686/100
= 343/50
= 6.86
答:9.8的0.7倍是6.86
9.8×0.7=6.86
9.8的0.7倍是6.86。
9.8×0.7
=6.86
9.8的0.7倍是6.86。
答: 9.8的0.7倍是:6.86 。
解析:依题意可得,
9.8x0.7=6.86