1

Problem

Subtract \$36/40 − 23/40\$.

2

Step

Give fractions are

\$36/40\$, \$23/40\$

3

Step

Like fractions have the same denominators.

4

Step

Subtract numerators of both fractions and keep the denominator are same

\$(36 - 23)/40\$

5

Step

After subtraction we get,

\$13/40\$

6

Sumup

Please summarize steps

Choices

7

Choice-A

This is incorrect because the result of subtraction is \$13/40\$, not the \$40/13\$

Wrong \$40/13\$

8

Choice-B

This is the correct \$36/40 - 23/40\$ = \$13/40\$

Correct \$13/40\$

9

Choice-C

This is incorrect because \$23/40\$ is one of the original fractions in the subtraction, not the result

Wrong \$23/40\$

10

Choice-D

This is incorrect because. It seems to be a distractor obtained by incorrectly subtracting 36 − 23 as 33 instead of 13

Wrong \$33/40\$

11

Answer

Option

B

12

Sumup

Please summarize choices