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1 Answer
MONDEOMAN
HI 11- 8/(1/3 + 1/5) = 11- 8 / (5/15 + 3/15) = 11-8/ 8/15 = 11- 15 = -4
WHEN WORKING FRACTIONS OUT ALWAYS START WITH THE BRACKETTED PARTS WHICH IN THIS CASE ARE 1/3 + 1/5 THIS WORKS OUT BY THE COMMON DENOMINATOR WHICH IS 15 THAT IS THE 3 AND THE 5 MULTIPLIED TOGETHER THIS GIVES THE 5/15 + 3/15 PART OF THE EQUATION THIS THEN EQUATS TO 8/15 YOU THEN HAVE THE 8 WHOLE NUMBER DIVIDED BY THE FRACTION 8/15 IF YOU DIVIDE BY A FRACTION THE NUMBERS ARE REVERSED SO INSTEAD OF 8/ 8/15 THIS BECOMES 8 X 15 ALL OVER 8 THIS EQUATS TO 15 SO GIVING THE ANSWER 11-15 =-4
HOPE THIS HELPS
| 14 years ago. Rating: 0 | |
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