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Question

Evaluate : (i) 59+76(ii) 4+35(iii) 115+512(iv) 59+34(v) 89+512(vi) 0+27(vii) 511+0(viii) 2+35(ix) 49+1

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Solution

(i) 59+76

LCM of 9 and 6=2×3×3=18=5×29×27×36×3 (LCM of 9 and 6=18)=102118=118(ii) 4+35=41+(35)=4135=4×51×53×15×1 (LCM of 1 and5=5)=2035175=325(iii) 115+512=115+(512)=115512


LCM of 15 and 12=2×2×3×5=60=1×415×45×512×5 (LCM of 15 and 12=60)=42560=2960(iv) 59+34

=5934(LCM of 9 and 4=2×2×3×3=36)=5×49×43×94×9=202736=736 (LCM of 9 and 4=36)=736(v) 89+512

(LCM of 9,12=2×2×3×3=36)=8×49×45×312×3=321536 (LCM of 9 and 12=36)=4736(vi) 0+27=0×71×72×17×1 (LCM of 0 and 7=7)=027=27(vii) 511+0=5×111×1+0×111×11 (LCM of 0 and 11=11)=5+011=511(viii) 2+35=2135 (LCM of 1 and 5=5)=2×51×53×15×1=1035=75=125(ix) 49+1=4911 (LCM of 9 and 1=9)=4×11×9+1×91×9=4+99=59


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