10又1/2÷35+2.8×1/7 脱式计算
问题描述:
10又1/2÷35+2.8×1/7 脱式计算
答
10又1/2÷35+2.8×1/7 =21/2÷35+0.4 =3/10+0.4 =0.3+0.4 =0.7
10又1/2÷35+2.8×1/7 脱式计算
10又1/2÷35+2.8×1/7 =21/2÷35+0.4 =3/10+0.4 =0.3+0.4 =0.7