Find the sum of ( -4/5 +
7/
10 )
11
−20
Answers
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Step-by-step explanation:
( - 4 / 5 + 7 / 10 ) 11 - 20
= ( - 4 x 2 / 10 + 7 / 10 ) 11 - 20
= ( - 8 / 10 + 7 / 10 ) 11 - 20
= ( - 1 / 10 ) 11 - 20
= - 11 / 10 - 20
= ( - 11 - 200 ) / 10.....cross multiplying to make
same denominator
= - 211 / 10
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