Question

7/20-(3 целых 5/8- 3целых 2/5)

Answer 1

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Answer 2

To solve the expression, we need to perform the operations in the correct order: first, subtract the quantity in parentheses and then subtract the result from 7/20.

Step 1: Evaluate the quantity in parentheses. 3 whole = 3 5/8 - 3 whole = 5/8 - 3 = 5/8 - 24/8 = (5 - 24)/8 = -19/8 2/5 = 2/5

So, (3 whole 5/8 - 3 whole 2/5) = -19/8 - 2/5

Step 2: Find a common denominator for the two fractions (-19/8 and -2/5), which is 40.

-19/8 = -19 * 5/8 * 5 / 5 = -95/40 -2/5 = -2 * 8/5 * 8 / 8 = -16/40

Step 3: Subtract the fractions.

(-95/40) - (-16/40) = -95/40 + 16/40 = (-95 + 16)/40 = -79/40

Step 4: Now, subtract the result from 7/20.

7/20 - (-79/40) = 7/20 + 79/40

Step 5: Find a common denominator for the two fractions (20 and 40), which is 40.

7/20 = 7 * 2/20 * 2 / 2 = 14/40

Step 6: Add the fractions.

14/40 + 79/40 = (14 + 79)/40 = 93/40

So, the final result is 93/40 or 2 whole 13/40.