Question

(7/20+2/5)*2-1 помогите пожалуйста решить

Answer 1

3/4*2-1=3/2-1=1/2=0.5

Answer 2

To solve the expression (7/20 + 2/5) * 2 - 1, we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

Step 1: Addition

First, we add the fractions 7/20 and 2/5. To add fractions, we need a common denominator. In this case, the common denominator is 20. So, we have:

(7/20 + 2/5) = (7/20) + (8/20) = 15/