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calculati 8 intreg 3\8-(5 intreg 5\6+ 1 intreg 3\4

Răspuns :

8 3/8 - (5 5/6 + 1 3/4) =

= (8×8+3)/8 - (5×6+5/6 + 1×4+3/4) =

= 67/8 - (35/6 + 7/4) =

= 67/8 - 35/6 - 7/4 =

=3×67/24 - 4×35/24 - 6×7/24 =

= 201/24 - 140/24 - 42/24 =

= 19/24