Oblicz. 4/5 : (1/2 - 1/5) - (2/3 - (3/8 - 1 i 1/3)) Pomoże ktoś bo już nie daje rady ... :(.... Question from @Lukasz24014

January 2019 2 7 Report

Oblicz.
4/5 : (1/2 - 1/5) - (2/3 - (3/8 - 1 i 1/3))

Pomoże ktoś bo już nie daje rady ... :(

ivon $\frac{4}{5}:(\frac{1}{2}-\frac{1}{5})-(\frac{2}{3}-(\frac{3}{8}-1\frac{1}{3}))=\\\\\frac{4}{5}:(\frac{5}{10}-\frac{2}{10})-(\frac{2}{3}-(\frac{9}{24}-1\frac{8}{24}))=\\\\\frac{4}{5}:\frac{3}{10}-(\frac{2}{3}-(-\frac{23}{24}))=\\\\\frac{4}{5}*\frac{10}{3}-(\frac{16}{24}+\frac{23}{24})=\\\\\frac{8}{3}-\frac{39}{24}=\\\\\frac{64}{24}-\frac{39}{24}=\\\\\frac{25}{24}=\\\\1\frac{1}{24}$

1 votes Thanks 1

marzena89x 4/5 : (1/2 - 1/5) - (2/3 - (3/8 - 1 i 1/3)) =
= 4/5 : (1/2 /*5 - 1/5 /*2) - (2/3 - (3/8 - 4/3)) =
= 4/5 : (5/10 - 2/10) - (2/3 - (3/8 /*3 - 4/3 /*8) =
= 4/5 : 3/10 - (2/3 - (9/24 - 32/24) =
= 4/5 * 10/3 - (2/3 - (-23/24) =
= 40/15 - (2/3 + 23/24) =
= 8/3 - (2/3 /*8 + 23/24) =
= 8/3 - (16/24 + 23/24) =
= 8/3 - 39/24 =
= 8/3 /*8 - 39/24 =
= 64/24 - 39/24 =
= 25/24 = 1 1/24

1 votes Thanks 0

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