Question

a. 3/4+1/3  b. 2/3-2/5  c. 1475*235

Answer 1

`a)3/4+1/3`

`=9/12+4/12=13/12`

`b)2/3-2/5`

`=10/15-6/15=4/15`

`c)1475xx235=346625`

Answer 2

\(\dfrac{3}{4}+\dfrac{1}{3}\)                               \(\dfrac{2}{3}-\dfrac{2}{5}\)

=\(\dfrac{9}{12}+\dfrac{4}{12}\)                          =\(\dfrac{10}{15}-\dfrac{6}{15}\)

=\(\dfrac{13}{12}\)                                   =\(\dfrac{4}{15}\)

1475\(\times\)235=346625

Chúc bạn học tốt.

Answer 3

a.3/4 + 1/3

= 9/12 + 4/12

= 13/12

b.2/3 - 2/5 

= 10/15 - 6/15

= 4/15

c.1475 x 235

= 346 625

Hok T~