explain me...
q no 13 (1 And 2)
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Step-by-step explanation:
1) {7/5 ×(-3/2)}+{7/5×5/12}
= 7/5(-3/12+5/12)
=7/5(-3+5/12)
=7/5(2/12)
=7/5×1/6
=7/30
2) {9/16×4/12}+{9/16×-3/9}
=9/16{4/12+(-3/9)}
=9/16{1/3-1/3}
=9/16×0
=0
Answered by
1
Answer:
(i) {7/5*[-3/12]}+{7/5*5/12}. (take 7/5 as common)
7/5*{[-3/12]+5/12}
7/5*(2/12)
7/5*2/12
14/60
(ii) {9/16*4/12}+{9/16*-3/9}. (take 9/16 as common)
9/16*{4/12+(-3/9)}. (take LCM of 12 and 9)
LCM= 36
9/16{[3*(4/12)]+[4*(-3/9)]
9/16{12/36+(-12/36)}
9/16 (12/36-12/36)
9/16 ans
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