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CBSE Class 8 Answered

write as a rational number in terms of p/q

3/4+5/6+-7/8

Asked by ajayrath7 | 10 Apr, 2017, 06:34: PM
answered-by-expert Expert Answer
begin mathsize 14px style 3 over 4 plus 5 over 6 plus open parentheses negative 7 over 8 close parentheses
equals 3 over 4 plus 5 over 6 minus 7 over 8
equals fraction numerator 3 cross times 6 plus 5 cross times 4 minus 7 cross times 3 over denominator 24 end fraction
equals fraction numerator 18 plus 20 minus 21 over denominator 24 end fraction
equals 17 over 24 end style
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