Question

二分之一✖️0.75+3.5➗一又三分之一等于多少？

Answer 1

这是分数与小数的混合运算
具体计算解答过程如下所示
1/2×0.75+3.5÷(1+1/3)
=1/2×3/4+3.5÷4/3
=3/8+3.5×3/4
=3/8+7/2×3/4
=3/8+21/8
=24/8
=3

Answer 2

1/2x0.75+3.5÷1又1/3
=1/2x3/4+3.5÷4/3
=0.5x3/4+3.5x3/4
=（0.5+3.5）x3/4
=4x3/4
=3

Answer 3

这题可以都化成分数来做
计算过程如下所示
1/2×0.75+3.5÷(1+1/3)
=1/2×3/4+3.5÷4/3
=3/8+7/2÷4/3
=3/8+7/2×3/4
=3/8+21/8
=24/8
=3

Answer 4

1/2×0.75+3.5÷1 1/3
=1/2×75/100+3.5÷1 1/3
=1/2×3/4+3 1/2÷1 1/3
=3/8+7/2÷4/3
=3/8+7/2÷4/3
=3/8+21/8
=24/8
=3

Answer 5

1/2×0.75+3.5÷1又1/3
=（1×0.75)/2+3.5×3/（3+1)
=0.75/2+10.5/4
=1.5/4+10.5/4
=12/4
=3