3-(-3) {-2-8-3}÷3{5+(-2) (-1) }
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63-[(-3){-2-8-3}]/[3{5+(-2)(-1)}]
= 63-[ (-3){-2-8-3} ] / [ 3{5+(-2)(-1)} ]
we solve the first of all small brackets,medium and then bigger using DMAS rule in side all the brackets
= 63-[ (-3){-2-8-3} ] / [ 3{5+2} ]
= 63-[ (-3){-2-11} ] / [ 3{7} ]
= 63-[ (-3){-13} ] / [ 3{7} ]
= 63-[ 39 ] / [ 21 ]
= 63 - (39 /21 )
= 63 - (13 / 7)
taking L C M = 7
= ( 7 × 63 - 13 ) / 7
= (441 -13) / 7
= 428 / 7
So Answer is 428 /7
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