Question

Giúp mình câu này rồi kết bạn nha:

7/8 + 3/4 =??

3/2 + 4/5 =??

6/7 x 5/6=??

5/6 : 8/9=??

Answer 1

7/8 + 3/4=13/8

3/2 + 4/5=23/10

6/7 * 5/6=5/7

5/6 : 8/9=15/16

Answer 2

\(\frac{7}{8}+\frac{3}{4}=\frac{28}{32}+\frac{24}{32}=\frac{52}{32}\)

\(\frac{3}{2}+\frac{4}{5}=\frac{15}{10}+\frac{8}{10}=\frac{23}{10}\)

\(\frac{6}{7}x\frac{5}{6}=\frac{30}{42}\)

\(\frac{5}{6}:\frac{8}{9}=\frac{5}{6}x\frac{9}{8}=\frac{45}{48}\)

Answer 3

\(\frac{7}{8}+\frac{3}{4}=\frac{13}{8}\)

\(\frac{3}{2}+\frac{4}{5}=\frac{23}{10}\)

\(\frac{6}{7}.\frac{5}{6}=\frac{5}{7}\)

\(\frac{5}{6}:\frac{8}{9}=\frac{15}{16}\)

Answer 4

7/8 + 3/4 = 7/8 + 6/8 = 13/8

3/2 + 4/5 = 15/10 + 8/10 =23/10

6/7 x 5/6 = 6 x 5 / 7x 6 = 30/42 = 15/21

5/6 : 8/9  = 5/6 x 9/8 = 5 x 9 / 6 x 8 =45 / 48