please solve this....(step by step....chapter name: rational number)
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Hey
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I) -7/9+3/4
First take the L. C. M of 9 and 4
And the L. C. M of 9 and 4 is 36
= -7×4/9×4 + 3×9/4×9
= -28 + 27/36
= -1/36
II) -3/-11 + 5/9
Take the L. C. M of 11 and 9
And the L. C. M of 11 and 9 is 99
= -3×9/-11×9 + 5×11/9×11
= -27 + 55/99
= 28/99
★ BE BRAINLY ★
__________________________________________
I) -7/9+3/4
First take the L. C. M of 9 and 4
And the L. C. M of 9 and 4 is 36
= -7×4/9×4 + 3×9/4×9
= -28 + 27/36
= -1/36
II) -3/-11 + 5/9
Take the L. C. M of 11 and 9
And the L. C. M of 11 and 9 is 99
= -3×9/-11×9 + 5×11/9×11
= -27 + 55/99
= 28/99
★ BE BRAINLY ★
charu2681:
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Answered by
7
HEYA!!
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[ 1 ]. -7 / 9. + 3/4
Taking LCM,
= -28 + 27 /36
= -1/36
[ 2 ]. -3/-11 + 5/9
The -ve sign cancels out ,
Taking LCM,
27 + 55 /99
= 8 2 / 99
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[ 1 ]. -7 / 9. + 3/4
Taking LCM,
= -28 + 27 /36
= -1/36
[ 2 ]. -3/-11 + 5/9
The -ve sign cancels out ,
Taking LCM,
27 + 55 /99
= 8 2 / 99
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