4.Oblicz: 6,8 - 5 1/4=6,4 x 5/8=2/15 x 0,75=1 3/7 x 0,056=2,4 : 1 3/5=3 3/4 : 0,05=2 /56 : 3,4=.... Question from @dejv111

November 2018 2 27 Report

4.Oblicz:
6,8 - 5 1/4=
6,4 x 5/8=
2/15 x 0,75=
1 3/7 x 0,056=
2,4 : 1 3/5=
3 3/4 : 0,05=
2 /56 : 3,4=

nella27o 6,8 - 5 1/4=6,8-6/4=6,8-3/2=68/10-3/2=34/5-3/2=53/10=5 3/10
6,4 x 5/8=64/10*5/8=32/5*5/8=4
2/15 x 0,75=2/15*75/100=2/15*3/4=1/10
1 3/7 x 0,056=10/7*56/1000=10/7*7/125=2/25
2,4 : 1 3/5=24/10:8/5=12/5:8/5=3/2=1 1/2
3 3/4 : 0,05=15/4:5/100=15/4:1/20=75
2 5/6 : 3,4=17/6:34/10=17/6:17/5=5/6

5 votes Thanks 9

krysta $6,8 - 5 \frac{1}{4}=6,8-5,25=1,55\\ \\6,4*\frac{5}{8}=\frac{32}{8}=4\\ \\\frac{2}{15}*0,75=\frac{1,5}{15}=\frac{15}{10}:15=\frac{15}{10}*\frac{1}{15}=\frac{1}{10}$

$1 \frac{3}{7} * 0,056=\frac{10}{7}*\frac{56}{1000}=\frac{8}{100}=\frac{2}{25}\\ \\2,4 : 1 \frac{3}{5}= \frac{24}{10}:\frac{8}{5}=\frac{12}{5}*\frac{5}{8}=\frac{3}{2}=1\frac{1}{2}\\ \\3 \frac{3}{4} : 0,05=\frac{3}{4}:\frac{5}{100}=\frac{3}{4}*\frac{20}{1}=15$

$\frac{2 }{56} : 3,4=\frac{2 }{56} : \frac{34}{10}=\frac{2 }{56} * \frac{5}{17}=\frac{10}{952}=\frac{5}{476}$

6 votes Thanks 8

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