calculate the following sum and find the value (1) 5/63- -1/9 (2) 3/7x 7/3 (3)7/4 %14/28
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(1) 5/63 - (-1/9)
=5/63 + 1/9
=5+1/63
=5+7/63
=12/63
=4/21
(2) 3/7 x 7/3
= 1
(3)7/4% ×14/28
=7/4/100 × 14/28
=7/400 × 14/28
=7/400 × 1/2
=7/800
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