Błagam pomocy , jutro pani ma sprawdzać to :c.... Question from @makrelaikociaku

krysta $zad.1\\a)\\ 1\frac{3}{7}+2\frac{6}{7}=3\frac{9}{7}=4\frac{2}{7}\\ \\\frac{3}{4}+\frac{5}{12}=\frac{9}{12}+\frac{5}{12}=\frac{14}{12}=\frac{7}{6}=1\frac{1}{6}\\ \\4\frac{8}{9}+4\frac{2}{3}=4\frac{8}{9}+4\frac{6}{9}=8\frac{14}{9}=9\frac{5}{9}$

$b)\\ 6\frac{1}{6}+3\frac{3}{8}=6\frac{4}{24}+3\frac{9}{24}=9\frac{13}{24}\\ \\\frac{1}{2}+\frac{2}{3}+\frac{3}{4}=\frac{6}{12}+\frac{8}{12}+\frac{9}{12}=\frac{21}{12}=\frac{7}{4}=1\frac{3}{4}\\ \\4+5\frac{2}{5}+2\frac{1}{4}=1\frac{3}{4}=4+5\frac{8}{20}+2\frac{5}{20}=11\frac{13}{20}$

$zad.2\\a)\\ 10\frac{1}{3}-3=7\frac{1}{3}\\ \\10-7\frac{3}{5}=9\frac{5}{5}-7\frac{3}{5}=2\frac{2}{5}\\ \\2\frac{3}{8}-1\frac{5}{8}=1\frac{11}{8}-1\frac{5}{8}=\frac{6}{8}$

$b)\\ \frac{6}{7}-\frac{5}{6}=\frac{36}{42}-\frac{35}{42}=\frac{1}{42}\\ \\2\frac{3}{4}-1\frac{2}{3}=2\frac{9}{12}-1\frac{8}{12}-1\frac{1}{8}\\ \\4\frac{1}{3}-\frac{5}{6}=4\frac{6}{18}-\frac{15}{18}=3\frac{24}{18}-\frac{15}{18}=3\frac{9}{18}=3\frac{1}{2}$

$c)\\ 8\frac{3}{4}-2\frac{1}{8}=8\frac{18}{24}-2\frac{3}{24}=6\frac{15}{24}\\ \\4\frac{4}{5}-1\frac{1}{7}=4\frac{28}{35}-1\frac{5}{35}=3\frac{23}{35}\\ \\8\frac{1}{2}-6\frac{5}{7}=8\frac{7}{14}-6\frac{10}{14}=7\frac{21}{14}-6\frac{10}{14}=1\frac{11}{14}$

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plus1 1)
a)1i 3/7+2 i 6/7=3 i 9/7=4 i 2/7
3/4+5/12=9/12+5/12=14/12=1 i 2/12=1i 1/6
4 i 8/9+4 i 2/3=4 i 8/9+4 i 6/9=8 i 14/9=9 i 5/9

b)6 i 1/6+3 i 3/8=37/6+27/8=148/24+81/24=229/24=9 i 13/24
1/2+2/3+3/4=6/12+8/12+9/12=23/12=1 i 11/12
4+5 i 2/5+2 i 1/4=4+5 i 8/20+2 i 5/20=11 i 13/20

2)
a)10 i 1/3-3=7 i 1/3
10-7 i 3/5=2 i 2/5
2 i 3/8-1 i 5/8=19/8-13/8=6/8=3/4

b)6/7-5/6=36/42-35/42=1/42
2 i 3/4-1 i 2/3=11/4-5/3=33/12-20/12=13/12=1 i 1/12
4 i 1/3-5/6=13/3-5/6=26/6-5/6=21/6=3 i 3/6=3 i 1/2

c)8 i 3/4 -2 i 1/8=35/4-17/8=70/8-17/8=53/8=6 i 5/8
4 i 4/5-1 i 1/7=24/5-8/7=168/35-40/35=128/35=3 i 23/35
8 i 1/2-6 i 5/7=17/2-47/7=119/14-94/14=25/14=1 i 11/14

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SENSBURG Z KĄD SIĘ WZIĘŁA TAKA NAZWA ?PROSZE , NIECH KTOŚ MI POMORZE ;)

Pomoże ktoś ? to na jutro musze mieć , a tego nie rozumiem w ogóle.. DAM NAJ !!! PROSZE KOGOŚ :/

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