Question

Find the sum:-1–7+5–21​

Answer 1

Step-by-step explanation:

1-7+5-21

6-28

-22

hope it helps you :D

Answer 2

Given :  -1/7  + 5/21

To Find :  the sum

Solution:

-1/7  + 5/21

Taking LCM 21 in denominator

= ( -3 + 5)/21

= (2)/21

=  2/21

$\dfrac{-1}{7} +\dfrac{5}{21}$

$=\dfrac{-3}{21} +\dfrac{5}{21}$

$=\dfrac{-3+5}{21}$

$=\dfrac{2}{21}$

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