Question

7/15×0.375+7/16÷1/15×3又1/2？

Answer 1

脱式计算7/15×0.375+7/16÷1/15×3又1/2
解题思路：四则运算规则（按顺序计算、先算乘除后算加减，有括号先算括号，有乘方先算乘方）即脱式运算（递等式计算）需在该原则前提下进行
解题过程：

7/15×0.375+7/16÷1/15×3又1/2

=7/15×3/8+7/16×15×7/2

=21/120+735/32

=（4×21+735×15）/480

=11109/480

=3703/160

存疑请追问，满意请采纳

Answer 2

7/15×0.375+7/16÷1/15×3又1/2
=7/15x3/8+7/16x15x7/2
=7/40+735/32
=28/160+3675/160
=3703/160。