Question

а) (5/6 + 5/18) - ( 3 7/9 - 2 13/15); б) (21/22 - 5/11) + (22/39 - 3/13); в) 2 9/10 - (1 2/5 + 3/10) + 7/20; г) 4 - (41/84 - 5/21) + 7 11/30.

Answer 1

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