Question

A 3/8 :6/5 +15/8 : 8

B 7,99:3,4x0,25

c 15,3-21,93:3,4

giúp mk nha mk cần gấp

Answer 1

a)3/8x6/5+15/8:8

=9/20+15/64

=219/320

b)7/99:3,4x0,25

=35/1683x0,25

=35/6732

c)15,3-21,93:3,4

=15,3-129/20

=177/20