Proszę o całe obliczenia a nie sam wynik :*.... Question from @nin0szek

asiunia1312

Odpowiedź:

e) $\frac{7}{10}-\frac{3}{8}= \frac{28}{40}-\frac{15}{40}=\frac{13}{40}$

f) $\frac{2}{3}-\frac{1}{4}=\frac{8}{12}-\frac{3}{12}=\frac{5}{12}$

g) $4\frac{3}{4}-1\frac{2}{3}=4\frac{9}{12}-1\frac{8}{12}=3\frac{1}{12}$

h) $5\frac{13}{15}-2\frac{3}{10}=5\frac{26}{30}-2\frac{9}{30}=3\frac{17}{30}$

e) $4\frac{2}{7}-\frac{5}{7}=3\frac{9}{7}-\frac{5}{7}=3\frac{4}{7}$

f) $3\frac{1}{4}-1\frac{3}{4}=2\frac{5}{4}-1\frac{3}{4}=1\frac{2}{4}=1\frac{1}{2}$

g) $2\frac{4}{6}-1\frac{5}{6}=1\frac{10}{6}-1\frac{5}{6}=\frac{5}{6}$

h) $3\frac{2}{10}-1\frac{5}{10}=2\frac{12}{10}-1\frac{5}{10}=1\frac{7}{10}$

e) $3\frac{1}{4}-1\frac{2}{3}=3\frac{3}{12}-1\frac{8}{12}=2\frac{15}{12}-1\frac{8}{12}=1\frac{7}{12}$

f) $2\frac{1}{2}-1\frac{2}{3}=2\frac{3}{6}-1\frac{4}{6}=1\frac{9}{6}-1\frac{4}{6}=\frac{5}{6}$

g) $3\frac{1}{4}-1\frac{5}{6}=3\frac{3}{12}-1\frac{10}{12}=2\frac{15}{12}-1\frac{10}{12}=1\frac{5}{12}$

h) $4\frac{1}{5}-3\frac{7}{10}=4\frac{2}{10}-3\frac{7}{10}=3\frac{12}{10}-3\frac{7}{10}=\frac{5}{10}=\frac{1}{2}$

Szczegółowe wyjaśnienie:

1 votes Thanks 1

Decemviren

Odpowiedź:

Od góry z lewej

7/10-3/8=28/40-15/40=13/40

2/3-1/4=8/12-3/12=5/12

4 2/7-5/7=30/7-5/7=25/7

3 1/4-1 3/4=13/4-7/4=6/4=1 1/2

3 1/4-1 2/3=13/4-5/3=39/12-20/12=19/12=1 7/12

2 1/2- 1 2/3= 5/2-5/3=15/6-10/6=5/6

Od góry z prawej

4 3/4-2 2/3= 19/4-8/3=57/12-32/12=25/12=2 1/12

5 13/15-2 3/10=88/15-23/10=176/30- 69/30=107/30=3 17/30

2 4/6- 1 5/6=16/6-11/6=5/6

3 2/10-1 5/10=32/10-15/10=17/10=1 7/10

3 1/4-1 5/6=13/4-11/6=39/12-22/12=17/12=1 5/12

4 1/5-3 7/10=21/5-37/10=42/10-37/10=5/10=1/2

0 votes Thanks 0